Last War Survival Season 4 Evernight Isle Guide: Full Overview, Resources, Tips, and Strategy

Season 4 Evernight Isle brings Last War Survival to Sakura Isle, a region covered in darkness after the spread of the Oni Virus. Players must restore light through the Lighthouse, increase Virus Resistance through the Optoelectronic Lab, produce Quartz, and help their alliance accumulate Copper.

This season is not controlled by squad Power alone. Darkness strengthens seasonal enemies, Lighthouse power can run out during Blood Night, and low Virus Resistance can prevent otherwise strong squads from contributing effectively.

This Last War Survival Season 4 Evernight Isle guide explains the timeline, Stone, Quartz, Copper, Magatama, Lighthouse Brightness, Electricians, seasonal buildings, Cities, Digging Strongholds, Trade Posts, Blood Night Descend, Sarah’s UR promotion, Exclusive Weapons, rewards, and the best priorities for free-to-play and paying players.

Season 4 Evernight Isle Quick Answer

The most important Season 4 priorities are:

1. Upgrade the Optoelectronic Lab: It increases Virus Resistance and unlocks higher Lighthouse Brightness levels.
2. Develop Quartz Workshops: Quartz is required for Lab upgrades, making early production one of the season’s main progression gates.
3. Activate all four generators: Each generator provides power and unlocks an Electrician.
4. Manage Lighthouse power: Higher Brightness provides stronger effects but consumes more power.
5. Enable auto-adjustment: This is especially important during Blood Night Descend.
6. Join an active alliance: Copper, Cities, Strongholds, the Alliance Center, Copper War, and faction rewards depend heavily on teamwork.
7. Capture Cities early: Cities produce Copper continuously.
8. Capture Digging Strongholds: They provide Stone for seasonal progression.
9. Complete Season Quests: Missing daily Stone and Quartz rewards creates a large progression gap.
10. Focus hero investment: Sarah’s promotion and three new Exclusive Weapons can consume substantial resources.

What Is Season 4 Evernight Isle?

Evernight Isle is the fourth major seasonal chapter in Last War Survival. It follows Season 3 Golden Kingdom and replaces Curse Resistance and Desert Protectors with a light-and-darkness system.

Sakura Isle has been covered by darkness following the release of the Oni Virus. An awakened Oni General commands infected enemies that become stronger under the Blood Night Moon.

Season 4 Feature	Main Purpose
Stone	Constructs and upgrades Quartz Workshops and other seasonal structures
Quartz	Upgrades the Optoelectronic Lab and related seasonal progression
Copper	Controls Alliance Center progression, alliance rankings, and seasonal rewards
Magatama	Purchases weekly rewards from the Magatama Shop
Optoelectronic Lab	Increases Virus Resistance and Maximum Brightness
Quartz Workshop	Produces Quartz
Lighthouse	Stores power and illuminates the base and surrounding area
Electricians	Operate generators, support allies, illuminate squads, and activate objectives
Alliance Center	Produces Copper, provides power, and unlocks alliance resource buildings
Blood Night Descend	Strengthens enemies, increases power consumption, and introduces seasonal combat stages
Maneki-neko	Hidden rewards discovered through light and Electricians
Sushi Restaurants	Fixed seasonal reward locations that must be illuminated
Sarah UR Promotion	Promotes eligible Sarah from SSR to UR
Exclusive Weapons	Add new abilities for Lucius, Adam, and Williams

The easiest way to understand Season 4 is that personal progression depends on Virus Resistance, Quartz production, and Lighthouse power, while alliance progression depends on Copper production and territory control.

Season 4 Timeline and Duration

Season 4 begins with a two-week Pre-Season. The main season then runs through eight active weeks before settlement and Celebration content.

Phase	Main Focus
Pre-Season Week 1	Grouping, rules, reward preview, and Season Boost information
Pre-Season Week 2	Season Preview, daily reveals, and final preparation
Week 1	Lighthouse, generators, Optoelectronic Lab, Quartz Workshops, Alliance Center, Blood Night Stage 1, and Lucius’s weapon
Week 2	Divine Tree, Ryotei Restaurant, Blood Night Hunter, and Blood Night Stage 2
Week 3	Sarah UR promotion, Trade Posts, level 5 and 6 Cities, Blood Night Stage 3, and Adam’s weapon
Week 4	Copper War, faction competition, and higher territory pressure
Week 5	Alliance Center relocation, City competition, and late-season development
Week 6	Williams’s Exclusive Weapon and increased Copper pressure
Week 7	Late-season territory defense and Copper War preparation
Week 8	Holy Mountain, final Blood Night stage, settlement, and reward distribution

The exact starting time can differ between servers. The Season interface countdown and in-game event schedule should be treated as the final reference.

What to Prepare Before Season 4

Preparation during Season 3 Celebration can improve the first weeks of Evernight Isle.

• Join an active alliance with a City and Alliance Center plan.
• Save Hero Return Tickets for S4 Legend Returns.
• Save generic speedups for seasonal buildings and normal development.
• Prepare Sarah and Universal Epic Hero Shards.
• Choose which Season 4 Exclusive Weapon supports your main squad.
• Develop one complete combat formation.
• Improve Hospital and Emergency Center capacity.
• Keep stamina for zombies, Doom Elites, Oni Generals, and Blood Night goals.
• Save teleports for hive and Alliance Center movement.
• Prepare shields for Copper War and faction conflict.

If your alliance relocates during the season, use the Advanced Teleporter guide before spending premium teleport items.

Prepare Your Main Squad

Light and Virus Resistance do not replace normal combat progression. Seasonal enemies still require sufficient troop tier, March Size, Morale, Hero Attack, HP, Defense, skills, and gear.

Before Season 4:

• Increase the levels and stars of your main heroes.
• Upgrade the most important hero skills.
• Promote gear on your primary damage dealer and frontline heroes.
• Develop the appropriate Tank, Aircraft, or Missile Center.
• Train enough troops to fill every hero’s March Size.
• Continue Special Forces research.

The Last War troop stats guide explains why displayed squad Power alone does not determine battle results.

Players approaching advanced troop progression can also review the Unit X guide before committing research and resources.

Main Goals in Season 4

Goal	Why It Matters
Upgrade the Optoelectronic Lab	Increases Virus Resistance and unlocks higher Brightness settings
Upgrade Quartz Workshops	Improves recurring Quartz production
Activate all generators	Increases power generation and provides Electricians
Manage Lighthouse power	Prevents the base from losing light during important events
Collect Stone	Supports Workshops and other seasonal construction
Collect Quartz	Supports Optoelectronic Lab progression
Accumulate Copper	Determines alliance progression and seasonal rankings
Capture Cities	Provides continuous Copper production
Capture Digging Strongholds	Provides continuous Stone production
Participate in Blood Night	Provides Magatama, Tactics Cards, City buffs, and seasonal rewards
Reach Lab level 20	Qualifies the account for documented faction rewards

Season 4 Resources Explained

Season 4 introduces Stone, Quartz, Copper, and Magatama.

Resource	Main Use	Progression Type
Stone	Quartz Workshop and seasonal building construction	Individual and alliance production
Quartz	Optoelectronic Lab upgrades	Individual progression
Copper	Alliance Center levels, alliance ranking, and Copper War	Alliance progression
Magatama	Weekly Magatama Shop purchases	Individual seasonal currency

Stone

Stone is the main construction resource used for Quartz Workshops and selected seasonal structures.

Common Stone sources include:

• First-time seasonal zombie level rewards.
• First-time Doom Elite rewards.
• The first Doom Walker kill of the day.
• Visitors outside the base wall.
• Season Quests and individual goals.
• Season Battle Pass and Weekly Pass rewards.
• City and Digging Stronghold first-capture rewards.
• Digging Stronghold production.
• The Alliance Center Stone Warehouse.

Alliance resource tiles that appear after Doom Elite kills do not provide Season 4 Stone or Quartz. Players cannot use the resource-funneling strategy that existed in some earlier seasons.

Best Stone Spending Priority

1. Repair and activate the Lighthouse’s first generator.
2. Build and upgrade Quartz Workshop I.
3. Reach level 15 to unlock the next permanent Workshop.
4. Continue unlocking additional Workshops.
5. Reserve Stone for seasonal structures and upcoming requirements.
6. Avoid pushing one expensive Workshop far above the others too early.

Quartz

Quartz is the main resource used to upgrade the Optoelectronic Lab.

Common Quartz sources include:

• Quartz Workshop production.
• First-time seasonal zombie rewards.
• S4 Legend Returns recruitment.
• Season Quests and individual goals.
• City first-capture rewards.
• Mini Maneki-neko.
• The Magatama Shop.
• Season passes and selected events.

Quartz should normally be directed toward the Optoelectronic Lab because Lab progression increases both Virus Resistance and Maximum Brightness.

Copper

Copper is the main alliance ranking resource. It works similarly to Rare Soil in Season 2 and Spice in Season 3.

Copper affects:

• Alliance Center progression.
• Power supplied to members inside Alliance Center territory.
• Alliance rankings.
• Copper War strategy.
• Alliance reward tiers.
• Late-season territory priorities.

Cities and the Alliance Center produce Copper continuously. Damaged Alliance Center buildings stop producing resources, while destroyed buildings can cause a percentage of accumulated Copper to be lost.

Magatama

Magatama is exchanged for rewards in the Magatama Shop. The inventory changes as new weekly missions become available.

Magatama can come from:

• Blood Night Descend goals.
• Blood Night zombie and Doom Elite first kills.
• Alliance rewards for defeating Oni Generals.
• Wandering Oniwagon kills.
• The Alliance Center Magatama Warehouse.
• Other Season 4 activities.

The shop resets weekly but remains accessible through Week 8. Review the full inventory before spending because later weeks may introduce more valuable progression items.

Light and Darkness Explained

Darkness affects bases, squads, and seasonal enemies. Zombies and Doom Elites receive additional benefits at night, while bases and squads without sufficient light can suffer penalties.

The Lighting System consists of:

• One Lighthouse.
• Four Zombie-powered Generators.
• Up to four Electricians.
• Power storage.
• Four Brightness levels.
• Alliance Center power support.

Higher Brightness increases the Lighthouse’s illuminated range and provides stronger effects. However, it also consumes more power.

Lighthouse Brightness Effects

Brightness	Virus Resistance	Morale	Lab Requirement
L1	+50	No additional Morale	Optoelectronic Lab level 2
L2	+150	No additional Morale	Optoelectronic Lab level 3
L3	+250	+3%	Optoelectronic Lab level 10
L4	+250	+5%	Optoelectronic Lab level 20

Use the Lighthouse Brightness that solves the current problem rather than automatically selecting L4.

Examples:

• Use L1 or L2 for normal illumination when power income is limited.
• Use L2 or higher to illuminate Sushi Restaurants.
• Use L3 when additional Virus Resistance and Morale are needed.
• Use L4 for major battles when power generation can support it.

Lighthouse Auto-Adjustment

Auto-adjustment changes Brightness according to power generation and consumption.

• If consumption exceeds production, Brightness decreases automatically.
• If production can support the next level, Brightness increases automatically.
• If the Lighthouse turns off, it can reactivate when sufficient power becomes available.

Important: Manually changing Brightness after enabling auto-adjustment disables the automatic setting. Always check the toggle again before Blood Night.

Lighthouse and Electricians Guide

The Lighthouse is located outside the base near the Armed Truck. It stores generated power and consumes that power to create light.

A newly constructed Lighthouse is not active. At least one generator must be repaired and activated before it can provide light.

How to Activate the Lighthouse

1. Open the Lighthouse Control Panel.
2. Select the generator repair option.
3. Repair Zombie-powered Generator I.
4. Kill the required number of world zombies.
5. Return to the generator.
6. Activate it.
7. Assign the resulting Electrician.
8. Select an appropriate Brightness level.

Zombie-powered Generators

Generator	Requirement
Generator I	Lighthouse level 1
Generator II	Optoelectronic Lab level 3
Generator III	Optoelectronic Lab level 10
Generator IV	Optoelectronic Lab level 15

Each activated generator provides an Electrician. Activating all four maximizes your ability to divide power between your own Lighthouse, allies, squads, and neutral objectives.

What Electricians Do

Electricians can:

• Operate personal generators.
• Provide power to an alliance member’s Lighthouse.
• Travel with a squad and reduce darkness effects.
• Help a squad ignore nighttime monster buffs.
• Discover Maneki-neko while marching.
• Charge Maneki-neko.
• Charge the Divine Tree.
• Provide Profession EXP through selected skills.

An Electrician can be recalled through the Electrician page inside the Lighthouse interface.

Best Electrician Priority

A practical order is:

1. Keep enough Electricians assigned to support your required Brightness.
2. Send one with the primary squad during dark combat.
3. Support alliance members who need power for an important objective.
4. Use remaining Electricians for Maneki-neko or Divine Tree activities.

Do not send every Electrician away when your own Lighthouse depends on their power.

Optoelectronic Lab Guide

The Optoelectronic Lab is the main personal progression building. It uses Quartz and can reach level 35.

Each upgrade can provide:

• More Virus Resistance.
• Higher Maximum Brightness at key levels.
• Power and account progression.
• Season Goal progress.
• Access to stronger seasonal enemies.

Important Lab Milestones

Lab Level	Important Unlock
Level 2	Lighthouse Brightness L1
Level 3	Brightness L2 and Generator II
Level 10	Brightness L3 and Generator III
Level 15	Generator IV
Level 20	Brightness L4 and faction reward qualification
Level 35	Maximum documented Lab level and Virus Resistance

Level 20 should be a minimum target for active players because it unlocks L4 and is required for documented faction rewards.

Why Virus Resistance Still Matters

Virus Resistance remains necessary against:

• Seasonal zombies.
• Doom Elites.
• Digging Stronghold defenders.
• Oni enemies.
• Selected Blood Night objectives.
• Other seasonal map targets.

If resistance is slightly below the target requirement, increasing Lighthouse Brightness may provide enough temporary resistance to complete the battle.

Quartz Workshop Guide

Quartz Workshops produce Quartz and use Stone for upgrades. Each can reach level 35.

Workshop Feature	Current Rule
Main output	Quartz
Upgrade resource	Stone
Maximum level	35
Production increase per level	720 Quartz per hour
Next Workshop unlock	Previous Workshop reaches level 15
Permanent Workshops	Workshop I through V
Weekly Pass benefit	One additional temporary Workshop

Optimal Quartz Workshop Strategy

1. Build Workshop I.
2. Upgrade it to level 15.
3. Build Workshop II and raise it to level 15.
4. Repeat for Workshops III and IV.
5. Unlock Workshop V when available.
6. After unlocking the permanent Workshops, keep their levels relatively balanced.

Every Workshop level adds the same 720 Quartz per hour, while Stone costs increase at higher levels. Upgrading the lowest-level available Workshop therefore usually provides the best production return.

Weekly Pass Workshop

The temporary Workshop has additional prerequisites at later levels. It should initially be upgraded alongside Workshop I, but its progression eventually depends on permanent Workshop unlocks.

When the pass expires, the temporary Workshop and its production disappear.

Alliance Center Guide

The Alliance Center becomes available on Day 2. R4 and R5 officers select its location, while alliance members send squads to complete construction.

Once active, it:

• Produces Copper.
• Provides buffs within its territory.
• Supplies power to nearby Lighthouses.
• Unlocks Stone, Oil, and Magatama buildings.
• Provides a central hive position.
• Progresses automatically based on accumulated Copper.

A higher Alliance Center level provides more power to members within its territory.

Alliance Center Additional Buildings

Building	Unlock	Production
Stone Warehouse	7 days after Season 4 begins	40,320 Stone per hour
Oil Warehouse	14 days after Season 4 begins	600 Oil per hour
Magatama Warehouse	21 days after Season 4 begins	6 Magatama per hour

Each building must be repaired after unlocking before it starts production.

Production stops when the building is damaged. If it is destroyed, the alliance loses a corresponding percentage of Copper.

These additional buildings stop producing on Day 1 of Week 8, so members should claim their output regularly.

Alliance Center Relocation

Alliance Center relocation is more dangerous in Season 4 because the relocation site can be attacked immediately after placement.

• The site cannot be moved after being placed.
• Members must garrison it to complete construction.
• Squad Power does not increase building speed.
• Stronger squads are still preferable because enemies can attack the site.
• The alliance should relocate soon after construction is completed.

Before placement, leadership should consider:

• City and Stronghold routes.
• Enemy alliances.
• Copper War objectives.
• Member activity and time zones.
• Alliance Center defensive coverage.
• Distance to the next territory objective.
• Whether members can relocate safely.

Season 4 Map and Territory

The Season 4 map includes:

• Cities.
• Digging Strongholds.
• Trade Posts.
• Holy Mountain.
• Divine Tree.
• Maneki-neko.
• Sushi Restaurants.
• Alliance Centers.
• Contaminated Land.

Season 4 has fewer Cities than Season 3, increasing competition over early routes and level 6 objectives.

Important Map Rules

• Territories touching at a corner are connected.
• Alliances begin without previous City ownership.
• City capture follows the Season 4 City Clash schedule.
• Trade Posts do not require connected alliance territory.
• Seasonal alliance resource tiles do not drop Stone or Quartz.
• There are four level 6 Cities positioned around the central region.

Cities and Copper Production

Cities produce Copper continuously after capture.

City Level	Copper per Hour
Level 1	100
Level 2	200
Level 3	300
Level 4	400
Level 5	500
Level 6	600

City Capture Limits

• Daily City declarations: 2
• Maximum owned Cities: 6
• Capture timing: Season 4 City Clash schedule

Higher-level Cities provide more Copper, but the best target depends on expected holding time, route cost, defense, nearby enemies, and available members.

Unlocking City Buffs

City buffs are not active immediately after capture. Alliances must defeat Oni Generals that appear during Blood Night Descend to unlock the benefits.

Capturing a City without participating in Blood Night therefore provides only part of its potential value.

Digging Strongholds

Digging Strongholds provide Stone and are protected by Oni Samurai, Oni Doji, and Oni Tengu.

Stronghold Level	Stone per Hour
Level 1	100
Level 2	120
Level 3	140
Level 4	160
Level 5	180
Level 6	200

Stronghold Capture Limits

• Successful captures per day: 2
• Maximum owned Strongholds: 6
• Main production: Stone

Capture Strongholds early enough for their Stone production to support several weeks of Quartz Workshop progression.

Check each defender’s troop type and Curse or Virus Resistance requirement before organizing rallies.

Trade Posts

Season 4 Trade Posts range from level 1 to level 4. The first Trade Post contests begin on Day 2 of Week 3.

Trade Post Rules

• Contests occur at 12:00 server time on Tuesdays and Fridays.
• Each contest lasts one hour.
• The player’s base must be positioned on nearby Contaminated Land.
• Connected alliance territory is not required.
• Capture progress is tracked individually.
• The highest progress wins an unowned Post.
• An owned Post requires 100% progress to change Governors.
• Players from the same alliance do not fight each other.

Trade Store and Taxes

The Governor can summon a Trade Caravan to stock the Trade Store.

• All commanders in the seasonal group can purchase items.
• The Governor’s alliance receives discounts.
• The Governor can access exclusive items.
• Most stock is shared and sold on a first-come basis.
• Each item has a daily purchase limit.
• Blood Night allows the Governor to call another Caravan with separate inventory.
• Sales generate tax returned as Golden Eggs.

Trade Posts can be valuable, but a player should not occupy more than they can defend.

Blood Night Descend

Blood Night Descend begins on Day 2 of Week 1 and continues throughout the season in four evolving stages.

Stage	Unlock	Main Content
Stage 1	Week 1	Night Parade of One Hundred Oni and Oni Generals
Stage 2	Week 2	Wandering Oniwagon Invasion
Stage 3	Week 3	Doomsday Crisis and Oni Legions
Stage 4	Late season	Toward the Light and Holy Mountain

Blood Night Schedule

Blood Night occurs daily at:

• 02:30 server time.
• 10:30 server time.
• 18:30 server time.

Each round lasts 30 minutes.

What Changes During Blood Night?

• Power consumption increases by 18,000 per minute.
• World zombies and Doom Elites become stronger.
• World zombies move and can attack bases in darkness.
• First-kill progression starts again from level 1.
• Enemies can drop Tactics Cards.
• Oni Generals appear and help unlock City buffs.
• Magatama becomes available through several activities.

Players can collect up to five documented Tactics Card drops from world zombies per day during Blood Night.

Blood Night Preparation

1. Fill Lighthouse power storage.
2. Enable auto-adjustment.
3. Confirm the setting was not disabled manually.
4. Recall enough Electricians to maintain power.
5. Check the highest usable Brightness.
6. Save stamina for first-kill and Oni objectives.
7. Confirm Hospital and Emergency Center capacity.
8. Follow alliance instructions for Oni Generals.

The Hospital guide and Emergency Center guide can help reduce permanent losses during major seasonal battles.

Blood Night Hunter

Blood Night Hunter becomes available through a Profession skill during Warless days.

While transformed:

• The base receives a special appearance.
• The player’s name and information are disguised.
• Virus Resistance and Morale increase.
• The player can cross into grouped warzones during Blood Night.
• Hunters can attack other Hunters.
• The player enters War Fever and cannot activate a shield.
• Normal teleport items cannot be used while transformed.

This mode is designed for active PvP players. Do not transform without understanding the breach, elimination, shield, and teleport restrictions.

Copper War

Copper War begins around Week 4 and serves as Season 4’s main alliance resource conflict.

Before Copper War:

• Review Alliance Center placement.
• Repair damaged warehouses.
• Fill Hospital capacity carefully.
• Prepare shields and teleports.
• Confirm rally leaders and defense assignments.
• Keep Lighthouse power available.
• Save healing and training speedups.
• Follow faction and alliance instructions.

Copper War can transfer or threaten accumulated alliance progress. Protecting the Alliance Center and its additional buildings is as important as attacking enemy territory.

Maneki-neko

Maneki-neko are hidden seasonal rewards located differently in each warzone.

Type	Rules
Large Maneki-neko	Can be discovered through Flares or base light and claimed by multiple commanders
Mini Maneki-neko	Triggered while marching with light and claimable only by the player who discovered it

Maneki-neko Rules

• Electricians must charge a discovered Maneki-neko.
• Only one Mini Maneki-neko can be discovered per player each day.
• Large Maneki-neko reward claims recover at a rate of three per day.
• Up to 15 Large Maneki-neko claims can be stored.
• Additional Large Maneki-neko can appear after the warzone defeats enough Oni Generals.
• Unclaimed rewards can appear in the Recon Plane or Loot interface.

Sushi Restaurants

There are 10 Sushi Restaurants in fixed locations. They unlock gradually during the first four weeks and remain available until the end of Week 8.

A Restaurant can display three states:

• Reopen in: The Restaurant is still locked.
• Opening with dark windows: It is unlocked but needs light.
• Opening with illuminated windows: The reward can be claimed.

How to Illuminate a Restaurant

• Move your base close enough for Lighthouse light to reach it.
• Use Lighthouse Brightness L2 or higher.
• Use a Flare Bomb Profession skill near the Restaurant.

Each Restaurant provides a one-time seasonal reward. The game tracks how many opened Restaurants remain unclaimed.

Divine Tree, Holy Mountain, and Ryotei Restaurant

Season 4 introduces several additional activities.

Activity	Main Purpose
Divine Tree	Uses Electricians and alliance participation to unlock Fortune Draw rewards
Holy Mountain	Supports the final stage of Blood Night and late-season progression
Ryotei Restaurant	Provides a staged tile-matching activity and seasonal rewards
Izakaya Bar	Radar mission mini-game with seven rounds and a title reward
Purge Action	Rewards zombie and seasonal enemy elimination

Check the Season interface and Event Hub guide before using stamina or event items.

Sarah UR Promotion

Sarah’s UR promotion opens on Day 1 of Week 3 and remains available until the end of the season.

The documented requirements are:

• Sarah at 5 stars.
• A UR Hero Badge.
• The Badge earned through the Season 4 Lighthouse goal.

Sarah is an Aircraft support hero. Her promoted UR kit improves Aircraft Attack and back-row Aircraft damage against monsters.

Before Promoting Sarah

• Read the promotion preview carefully.
• Confirm how stars and skills will reset.
• Check which Skill Medals will be returned.
• Prepare enough Sarah or Universal Epic Shards.
• Avoid weakening your squad immediately before Copper War.
• Coordinate the promotion with Alliance Duel Hero Day when practical.

Community gameplay shows Sarah returning to 3 stars after promotion, with skill-related resources returned. However, always verify the current promotion confirmation screen because refund wording and progression handling may change.

Use the Hero Shards guide and Skill Medal guide before rebuilding her UR progression.

Mason, Violet, and Scarlett Promotion

Players with unused promotion items can also promote Mason, Violet, or Scarlett during Season 4.

The promotion should be completed before Week 8 begins. After that point, the player may need to wait for the next seasonal promotion window.

Review the Violet guide and Wall of Honor guide before using promotion items.

S4 Legend Returns

S4 Legend Returns starts on Day 1 and can provide selected UR heroes, Stone, Quartz, and other rewards.

Before spending Hero Return Tickets:

• Review the available hero pool.
• Check guaranteed recruitment rules.
• Prioritize heroes used by your main formation.
• Coordinate recruitment with Alliance Duel or Arms Race.
• Do not spend every ticket only for small Stone or Quartz rewards.

The Last War Tavern guide explains how recruitment pools change as a server progresses.

Season 4 Exclusive Weapons

Hero	Release	Main Formation
Lucius	Day 4 of Week 1	Aircraft
Adam	Day 4 of Week 3	Missile
Williams	Day 4 of Week 6	Tank

Activation normally requires:

• The hero at 5 stars.
• 50 hero-specific Exclusive Weapon Shards.

Universal Exclusive Weapon Shards can upgrade an activated weapon but cannot normally replace the named shards needed for the initial unlock.

Lucius’s Exclusive Weapon

Lucius’s weapon strengthens his Aircraft support and defensive role. It is most valuable when he remains a permanent frontline hero in a developed Aircraft squad.

Adam’s Exclusive Weapon

Adam’s weapon strengthens his counterattack and protective abilities. It is designed for a developed Missile formation using Adam as a frontline defender.

Williams’s Exclusive Weapon

Williams’s weapon strengthens Tank frontline durability and team support. It is most useful when Williams remains paired with Murphy or another developed Tank defender.

Weapon Upgrade Priority

1. Choose a hero permanently used in the main formation.
2. Collect the 50 named shards needed for activation.
3. Target a useful level 10 milestone.
4. Consider the team-wide level 20 bonus.
5. Delay level 30 until the complete squad is developed.

Exclusive Weapons should not replace normal gear progression or important hero skills.

Profession Level and Tactics Cards

The Profession level cap remains 100 during Season 4. The Diplomat Profession is not available.

Season-specific skills can support:

• Lighthouse power.
• Electrician assistance.
• Blood Night Hunter.
• Flare Bomb illumination.
• Trade Post discounts.
• Seasonal construction.
• Copper War combat.
• Alliance support.

Tactics Cards also become an important seasonal progression system. Cards can provide combat effects and may drop from Blood Night enemies.

Do not level every card equally. Focus on cards that benefit your main formation or current alliance role.

Season 4 Quests and Daily Routine

A practical daily routine is:

1. Claim Quartz from every Workshop.
2. Claim Stone from Digging Strongholds.
3. Claim Alliance Center resource production.
4. Check Lighthouse power storage.
5. Confirm Electrician assignments.
6. Complete Season Quests.
7. Complete Izakaya Bar and seasonal Radar Tasks.
8. Kill the highest useful Doom Walker once.
9. Prepare for the three Blood Night rounds.
10. Check Maneki-neko and Sushi Restaurant opportunities.
11. Follow City, Stronghold, and Copper War announcements.
12. Coordinate hero and building upgrades with Alliance Duel.

The Alliance Duel guide can help you time Hero Shards, recruitment, buildings, research, gear, and speedups.

Season Battle Pass

The Season Battle Pass lasts through most of the active season and provides free and paid rewards.

Possible rewards include:

• Stone.
• Quartz.
• Profession EXP.
• Profession Skill Points.
• Hero Return Tickets.
• Hero Shards.
• Speedups.
• Tactics Cards.
• Season progression materials.

The Advanced and Luxury reward columns are separate purchases. Buying one does not automatically unlock the other.

Weekly Pass

The Weekly Pass lasts seven days and can provide:

• An additional temporary Quartz Workshop.
• Temporary Virus Resistance.
• March Speed against zombies.
• Stone.
• VIP Points.
• Protector Horns.
• Stamina.
• Speedups.

The pass provides more long-term value in the early season because additional Quartz production supports more Lab upgrades before settlement.

Exclusive Weapon Passes

Before purchasing a weapon pass, confirm:

• The hero is already 5 stars or can reach 5 stars.
• The hero belongs to the main formation.
• The pass provides enough named shards for activation.
• The full pass can be completed.
• The weapon provides more value than another account upgrade.

Season 4 Goals and Rewards

Season Goals are divided between individual and alliance progress.

Goal Type	Main Requirement
Individual Goals	Activate the Lighthouse and remain in the Light state
Alliance Goals	Capture Digging Strongholds

Individual rewards can include:

• Stone.
• Quartz.
• Sarah Shards.
• The UR Hero Badge.
• Tactics Cards.

Alliance Rewards

Alliance rewards are based on the tier achieved at settlement. The tier becomes fixed when the season settles.

During Week 8, alliance leadership can distribute eligible reward chests according to internal alliance rules.

Faction Rewards

Both winning and losing factions can receive rewards. The account must have Optoelectronic Lab level 20 or higher by Day 1 of Week 8 to qualify under the documented requirement.

Best Season 4 Priorities for Beginners

Priority 1: Active Alliance

Copper, Cities, Strongholds, Alliance Center production, Blood Night, and seasonal rewards depend on alliance coordination.

Priority 2: Optoelectronic Lab

The Lab controls Virus Resistance, Brightness, generator access, and faction reward qualification.

Priority 3: Quartz Workshops

Early production improvements generate more Quartz across the remaining season.

Priority 4: Generators

Activate each generator as soon as its Lab requirement is reached.

Priority 5: Lighthouse Power

Use Brightness based on actual power production rather than leaving L4 active constantly.

Priority 6: Season Quests

Daily Stone and Quartz rewards are necessary for consistent progression.

Priority 7: Territory Participation

Join City, Stronghold, Blood Night, Trade Post, and Copper War activities according to alliance instructions.

Priority 8: Focused Hero Investment

Promote Sarah or activate an Exclusive Weapon only when it supports the main formation.

Recommended Resource Priority

Priority	Investment	Reason
1	Optoelectronic Lab	Increases Virus Resistance and Maximum Brightness
2	Quartz Workshops	Improves recurring Quartz production
3	Generators	Improves power income and provides Electricians
4	Lighthouse power management	Maintains light during Blood Night and seasonal combat
5	Alliance Center repair and defense	Protects Copper and alliance resource production
6	Magatama Shop priority items	Provides useful seasonal progression materials
7	Main Exclusive Weapon	Improves one established formation

Alliance Strategy for Evernight Isle

Leadership Priorities

• Select a defensible Alliance Center location.
• Plan City routes before City Clash begins.
• Capture early Digging Strongholds for Stone.
• Repair additional Alliance Center buildings immediately after unlock.
• Organize Oni General kills for City buffs.
• Plan Trade Post Governors and defenders.
• Coordinate Blood Night and Electrician support.
• Prepare Copper War offense and defense.
• Protect the Alliance Center relocation site.
• Set clear rules for season reward distribution.

Member Priorities

• Complete Season Quests daily.
• Maintain enough Lighthouse power.
• Join City and Stronghold rallies.
• Help repair Alliance Center buildings.
• Send Electricians when requested.
• Participate in Oni General kills.
• Follow Trade Post and Copper War instructions.
• Protect Hospital capacity.
• Keep shields and teleports available.
• Avoid unauthorized territory conflicts.

Free-to-Play Season 4 Strategy

• Complete every Season Quest.
• Claim Workshop and alliance production regularly.
• Reach Optoelectronic Lab level 20.
• Unlock all permanent Quartz Workshops.
• Activate all generators.
• Use L1 or L2 when higher Brightness is unnecessary.
• Enable auto-adjustment before Blood Night.
• Save Sarah Shards before Week 3.
• Choose only one Season 4 Exclusive Weapon priority.
• Join Oni General, Stronghold, and Copper War events.
• Use Magatama on high-value progression items.
• Stay in an active alliance.

Common Season 4 Mistakes

• Ignoring the Optoelectronic Lab: Low Virus Resistance and Brightness limit the entire season.
• Leaving L4 active constantly: Maximum Brightness can drain power unnecessarily.
• Forgetting auto-adjustment: Blood Night can empty Lighthouse storage quickly.
• Changing Brightness manually after enabling automation: Manual changes disable auto-adjustment.
• Delaying generators: Missing Electricians reduces power and objective flexibility.
• Upgrading only one Workshop: Lower-level Workshops offer the same production increase at a lower cost.
• Ignoring Alliance Center buildings: Damaged warehouses stop producing and can cost the alliance Copper.
• Placing relocation sites carelessly: The site can be attacked immediately.
• Capturing random Cities: The six-City limit should support a long-term Copper plan.
• Ignoring Oni Generals: City buffs remain locked.
• Skipping Blood Night: Players miss Magatama, Tactics Cards, first kills, and City progress.
• Overcommitting to Trade Posts: Individual Governors must defend what they capture.
• Promoting Sarah without resources: Her star and skill progression may require substantial rebuilding.
• Chasing all three Exclusive Weapons: One developed weapon is usually more useful.
• Staying in an inactive alliance: Personal progress cannot replace Copper and territory coordination.

What Happens After Season 4?

Season 4 ends with settlement and Celebration before the server progresses toward Season 5 Wild West.

Before Evernight Isle ends:

• Claim all individual and alliance rewards.
• Confirm Stone and Quartz conversion rules.
• Claim Alliance Center production before it stops.
• Complete any remaining UR promotions.
• Review Tactics Cards and Exclusive Weapon progress.
• Save general stamina and speedups.
• Keep Season Store currency when no current item is valuable.
• Prepare for Season 5 Sheriff, Wanted, and Wild West systems.

Season 4 and Account Progression

A developed Evernight Isle account combines a high-level Optoelectronic Lab, multiple upgraded Quartz Workshops, all four generators, stable Lighthouse power, strong Virus Resistance, advanced troops, a complete main formation, developed gear, and carefully selected Exclusive Weapons. These systems work together because high squad Power alone cannot replace seasonal resistance, reliable light, or consistent alliance participation.

Building this level of progress from a new account can require weeks of Quartz production, Lab upgrades, Lighthouse management, hero development, troop research, Blood Night participation, and coordinated territory activity. Players who prefer to begin Evernight Isle with more established progression can explore a Last War account for sale through Heaven Guardian.

Depending on the listing, an account may already include completed Season 4 progression, a developed Optoelectronic Lab, upgraded Quartz Workshops, activated generators, UR Sarah, developed Lucius, Adam, or Williams Exclusive Weapons, Unit X troops, advanced gear, higher VIP levels, and competitive Tank, Aircraft, or Missile formations. This can reduce the time needed to reach stronger Blood Night objectives, higher-level Cities, Copper War, and later-season content.

Before choosing an account, compare the server age, current season, Optoelectronic Lab level, Quartz Workshop development, generator status, Sarah’s rarity and stars, troop tier, research, gear quality, Exclusive Weapon levels, VIP status, alliance position, and remaining transferable resources. Heaven Guardian purchases include lifetime warranty coverage and premium support to provide additional protection throughout the buying process.

FAQs

Q: What is Season 4 Evernight Isle?

A: It is the fourth major Last War Survival season, introducing Sakura Isle, Lighthouse power, Electricians, Stone, Quartz, Copper, Magatama, Blood Night, and new hero progression.

Q: What is the main goal of Season 4?

A: Increase Virus Resistance, manage Lighthouse power, and help your alliance accumulate Copper through Cities and the Alliance Center.

Q: What is Stone used for?

A: Stone constructs and upgrades Quartz Workshops and selected seasonal buildings.

Q: What is Quartz used for?

A: Quartz primarily upgrades the Optoelectronic Lab.

Q: What is Copper used for?

A: Copper progresses the Alliance Center and determines alliance rankings and seasonal rewards.

Q: What is Magatama used for?

A: It purchases weekly items from the Magatama Shop.

Q: What is the maximum Optoelectronic Lab level?

A: The documented maximum is level 35.

Q: What is the maximum Quartz Workshop level?

A: Quartz Workshops can reach level 35.

Q: When does Lighthouse L4 unlock?

A: Maximum Brightness L4 unlocks at Optoelectronic Lab level 20.

Q: What does L4 provide?

A: It provides +250 Virus Resistance and +5% Morale while illuminating the largest available range.

Q: How many generators are available?

A: Each commander can activate four Zombie-powered Generators.

Q: How do I get Electricians?

A: Each repaired and activated generator provides one Electrician.

Q: What can Electricians do?

A: They support personal power, assist allies, illuminate squads, charge Maneki-neko, and participate in Divine Tree objectives.

Q: When does Blood Night begin?

A: Blood Night Descend begins on Day 2 of Week 1.

Q: How often does Blood Night occur?

A: It occurs three times daily at 02:30, 10:30, and 18:30 server time.

Q: How long does Blood Night last?

A: Each round lasts 30 minutes.

Q: Why does my Lighthouse lose power during Blood Night?

A: Blood Night adds 18,000 power consumption per minute.

Q: How many Cities can an alliance own?

A: The documented maximum is six Cities.

Q: How many Digging Strongholds can an alliance own?

A: The documented maximum is six Strongholds.

Q: How many City and Stronghold captures are allowed daily?

A: Alliances can declare two City wars and complete two Stronghold captures per day.

Q: How do City buffs unlock?

A: The alliance must defeat Oni Generals during Blood Night Descend.

Q: How many Sushi Restaurants are there?

A: There are 10 fixed Restaurants that unlock during the first four weeks.

Q: How many Mini Maneki-neko can I discover daily?

A: Each player can discover one Mini Maneki-neko per day.

Q: When can Sarah become UR?

A: Sarah’s promotion opens on Day 1 of Week 3.

Q: What does Sarah need for promotion?

A: She must be 5 stars and requires the UR Hero Badge from Season 4 Lighthouse goals.

Q: Which heroes receive Season 4 Exclusive Weapons?

A: Lucius receives one in Week 1, Adam in Week 3, and Williams in Week 6.

Q: Can Universal Weapon Shards activate a weapon?

A: No. Activation normally requires 50 hero-specific weapon shards.

Q: What Lab level is needed for faction rewards?

A: Optoelectronic Lab level 20 or higher is required under the documented rules.

Q: Can free-to-play players perform well in Season 4?

A: Yes. Complete daily quests, develop Workshops, reach Lab level 20, manage power, and remain active in an organized alliance.

Conclusion

Season 4 Evernight Isle transforms Last War Survival into a light-and-darkness campaign. The Optoelectronic Lab controls Virus Resistance and Maximum Brightness, Quartz Workshops control long-term progression, and the Lighthouse determines whether the base and squads can operate effectively in darkness.

Upgrade Workshops efficiently, activate all four generators, enable auto-adjustment before Blood Night, and use Electricians according to your current objective. For alliance progress, capture productive Cities and Digging Strongholds, repair the Alliance Center’s additional buildings, defeat Oni Generals, and prepare carefully for Copper War.

Sarah’s UR promotion and the Lucius, Adam, and Williams Exclusive Weapons provide valuable development opportunities, but they should support your long-term main formation rather than divide limited resources.

Learn more about Last War on the official website.