
Season 6: Lost Rainforest brings a new jungle-themed chapter to Last War: Survival. After the Wild West battlefield of Season 5, players enter the Shadow Rainforest, where the Great River has been poisoned by a spreading virus and the Deepwood Clan and Wetland Clan are locked in war.
This season brings new resources, new seasonal buildings, faction-related rewards, rainforest enemies, Virus Resistance progression, War Merit, Spore production, and a new SSR-to-UR hero upgrade for Braz.
In this Last War Survival Season 6 Lost Rainforest guide, we will cover the full season overview, timeline, resources, buildings, map system, rewards, best beginner priorities, free-to-play tips, alliance strategy, and mistakes to avoid.
What Is Season 6: Lost Rainforest? 🌿

Season 6: Lost Rainforest is the sixth major season in Last War: Survival. This season takes players into the Shadow Rainforest, a dangerous jungle region affected by a spreading virus.
The story focuses on the Great River, which is the lifeline of the rainforest clans. After the river becomes poisoned, the balance between the Great River Clan, Deepwood Clan, and Wetland Clan begins to collapse.
The Deepwood Clan and Wetland Clan are already at war. The virus makes things worse by corrupting the land, turning creatures into monsters, and pushing the rainforest closer to destruction.
Season 6 introduces several important systems:
| Feature | What It Does |
|---|---|
| Spore | Used to upgrade the Fungus Institute |
| Rainforest Mushroom | Used to build and upgrade Spore Factories |
| War Merit | Rare resource used in the War Merit Shop |
| Fungus Institute | Increases Virus Resistance |
| Spore Factory | Produces Spore over time |
| Protector’s Field | Seasonal unit-related building |
| War Merit Shop | Lets players buy useful items with War Merit |
| Deepwood vs Wetland theme | Main faction conflict of the season |
| Alliance Safe Time | Helps alliances manage war timing |
| Season 6 Battle Pass | Gives seasonal resources and rewards |
| Weekly Pass | Adds a temporary Spore Factory and bonus effects |
| Braz UR Upgrade | Allows Braz to receive a UR upgrade |
| Alliance/Faction Rewards | Season rewards return with alliance and faction reward structure |
The easiest way to understand Season 6 is this: your personal progress depends on Spore, Rainforest Mushroom, and Virus Resistance, while your alliance progress depends on map control, War Merit, faction performance, and activity.
Season 6 Timeline and Duration 📅

Season 6 starts with a 2-week Pre-Season, similar to previous seasons.
During Pre-Season, the Season 6 icon appears near your normal event icons. This icon shows the countdown until your server enters the main Season 6 phase.
The countdown may not match your server reset exactly. In some cases, season events may take several minutes to fully appear after the countdown ends.
| Phase | Main Focus |
| Pre-Season Week 1 | Season Preview, Season Boost, Faction Awards, Alliance Safe Time |
| Pre-Season Week 2 | Capitol Conquest and final preparation |
| Week 1 | Lost Rainforest opens, Fungus Institute, Spore Factory, early quests |
| Week 2 | More seasonal events and map progression |
| Later Weeks | More alliance objectives, rewards, stores, and faction competition |
| End of Season | Alliance and faction reward settlement |
Because Season 6 is still newer than older seasons, some later-week details may vary depending on server cycle and game updates. Always check your in-game Season 6 event calendar for your server’s exact schedule.
Main Goals in Season 6 🎯
Season 6 has several systems, but the main goals are simple once you break them down.
| Goal | Why It Matters |
| Upgrade Fungus Institute | Increases Virus Resistance |
| Upgrade Spore Factories | Improves Spore production |
| Collect Rainforest Mushroom | Needed for Spore Factory upgrades |
| Collect War Merit | Used in the War Merit Shop |
| Complete Season 6 Quests | Gives important seasonal resources |
| Join an active alliance | Season rewards depend heavily on alliance activity |
| Follow faction and alliance strategy | Season 6 includes faction-related rewards |
| Prepare for map objectives | The Season 6 map is very large |
| Use passes carefully | Paid passes can speed progress, but are not required |
| Plan Braz UR upgrade | Useful if Braz fits your lineup |
Season 6 is not only about personal building progress. It also rewards alliances that stay active, coordinate map movement, and participate in faction-related content.
New Season 6 Resources 💎
Season 6 adds three key resources: Spore, Rainforest Mushroom, and War Merit.
| Resource | Main Use | Why It Matters |
| Spore | Upgrade Fungus Institute | Helps increase Virus Resistance |
| Rainforest Mushroom | Upgrade Spore Factories and seasonal buildings | Supports long-term Spore income |
| War Merit | Buy items from War Merit Shop | Valuable rare seasonal currency |
Quick Resource Priority
| Priority | Resource | Main Early Use |
| 1 | Spore | Fungus Institute upgrades |
| 2 | Rainforest Mushroom | Spore Factory upgrades |
| 3 | War Merit | War Merit Shop purchases |
For most players, Spore and Rainforest Mushroom should be your early focus because they directly affect your seasonal building progress.
Spore Explained 🍄

Spore is one of the most important resources in Season 6. It is used to construct and upgrade the Fungus Institute, which increases your Virus Resistance.
You can usually get Spore from:
- First-time Doom Elite kill rewards
- S6: Legend Returns recruitment
- Season Quest missions
- Season 6 Goals
- City first-capture rewards
- Spore Factory production
Spore is very important because your Fungus Institute progress depends on it. If you fall behind on Spore, your Virus Resistance may also fall behind.
Best Spore Tips
- Use Spore mainly for Fungus Institute upgrades.
- Do not waste Spore on low-priority upgrades if your resistance is behind.
- Build Spore Factories early so your passive income starts quickly.
- Complete Season Quests daily for more Spore.
- Watch event rewards that include Spore before spending speedups or stamina.
At the end of the season, unused Spore may be converted into Profession EXP, so it is still useful. However, during the season, your best value usually comes from spending it on important upgrades.
Rainforest Mushroom Explained 🌧️

Rainforest Mushroom is used to construct and upgrade Spore Factories. Since Spore Factories generate Spore, Rainforest Mushroom is a key economy resource for Season 6.
You can usually get Rainforest Mushroom from:
- First-time zombie kill rewards
- First-time Doom Elite kill rewards
- S6: Legend Returns recruitment
- Doom Walker first daily kill
- Visitors near your base wall
- Season Quest missions
- Season 6 Goals
- Weekly Pass
- Season Battle Pass
- City first-capture rewards
- Stronghold first-capture rewards
- War Merit Shop purchases
Rainforest Mushroom is similar to Coffee Beans from Season 5 or Quartz-related materials from Season 4. It supports your seasonal production system.
Best Rainforest Mushroom Tips
- Use Rainforest Mushroom to upgrade Spore Factories efficiently.
- Do not spend all of it before unlocking your next factory.
- Save some for important season goals if needed.
- Buy more from the War Merit Shop only if it helps your current progress.
- Complete quests daily because missing them slows your whole season economy.
At the end of Season 6, unused Rainforest Mushroom may also be converted into Profession EXP.
War Merit Explained ⚔️

War Merit is a rare Season 6 resource used in the War Merit Shop.
You can usually get War Merit from:
- First-time zombie kill rewards
- First-time Doom Elite kill rewards
- Cities controlled by your alliance
War Merit is important because it can be exchanged for useful seasonal items. It is harder to get than basic resources, so you should spend it carefully.
Best War Merit Tips
- Do not spend War Merit randomly.
- Check the War Merit Shop before buying anything.
- Prioritize items that help your Season 6 progress.
- Consider Rainforest Mushroom if it helps unlock or upgrade Spore Factories.
- Save War Merit if better shop items unlock later on your server.
Because War Merit is tied to seasonal progress and alliance control, active alliances will usually have better access to it over time.
Fungus Institute Guide 🧪

The Fungus Institute is one of the most important personal buildings in Season 6. It increases your Virus Resistance, which helps you defeat zombies and Stronghold protectors.
| Fungus Institute Feature | Why It Matters |
| Increases Virus Resistance | Helps defeat stronger seasonal enemies |
| Uses Spore | Makes Spore your main upgrade resource |
| Supports map progress | Helps you fight enemies tied to objectives |
| Important for season goals | May be linked to quests and rewards |
The source indicates that the Fungus Institute may go up to around Level 60, but exact values can vary or update depending on server version. Always check your in-game building screen for the current max level and cost.
Why Fungus Institute Matters
Virus Resistance has appeared in multiple Last War: Survival seasons, and it still matters in Season 6.
If your resistance is too low, you may struggle with:
- Higher-level zombies
- Doom Elites
- Stronghold protectors
- Seasonal objectives
- Some alliance capture content
This is why the Fungus Institute should be one of your highest early priorities.
Best Fungus Institute Tips
- Upgrade it steadily from Day 1.
- Use Spore carefully.
- Do not ignore first-time kill rewards.
- Keep up with Season 6 Quests.
- Avoid falling too far behind your alliance’s required resistance level.
If you are unsure what to upgrade first, choose Fungus Institute before optional systems.
Spore Factory Guide ⚙️

Spore Factories produce Spore over time. This makes them very important because Spore is needed for Fungus Institute upgrades.
Spore Factories work similarly to previous season production buildings such as Coffee Factories, Quartz Workshops, Blessing Fountains, and Titanium Alloy Factories.
| Spore Factory Feature | Details |
| Main output | Spore |
| Upgrade resource | Rainforest Mushroom |
| Max level | Level 30 |
| Multiple factories | Yes |
| Unlock rule | Level a factory to 15 to unlock the next one |
| Weekly Pass bonus | Temporary extra Spore Factory while active |
Best Spore Factory Upgrade Strategy
A good general strategy is:
- Build Spore Factory I.
- Upgrade it to Level 15.
- Unlock and build Spore Factory II.
- Upgrade Spore Factory II to Level 15.
- Repeat this pattern for later factories.
- After unlocking your normal factories, level them more evenly.
This strategy is usually better than pushing only one factory very high early because lower-level factory upgrades often give better value per resource.
Why Spore Factories Matter
Spore Factories are your long-term source of Spore.
The earlier you build and upgrade them, the more Spore they produce across the whole season. This makes them especially important for free-to-play and low-spender players.
Protector’s Field and Seasonal Units 🛡️

Season 6 includes Protector’s Field as one of the seasonal buildings.
The exact Season 6 Protector’s Field rules may depend on your server version and current update, but based on previous seasons, this type of building is usually linked to seasonal combat units and support mechanics.
| Protector’s Field Detail | Recommendation |
| Main role | Seasonal unit management |
| Early priority | Medium unless required by quests |
| Spending caution | Do not over-upgrade before checking costs |
| Best use | Support important fights and alliance objectives |
Protector’s Field Tips
- Build it when Season 6 requires it.
- Do not rush upgrades too far without checking resource costs.
- Prioritize Fungus Institute and Spore Factories first.
- Upgrade it further if your alliance needs combat support.
- Watch for season goals that require specific building levels.
If your server reveals updated Protector’s Field rules, adjust your priority based on what it unlocks.
War Merit Shop Guide 🛒

The War Merit Shop is a Season 6 shop where players can spend War Merit on useful items.
Since War Merit is not as easy to farm as basic resources, you should be selective.
War Merit Shop Priority
| Priority | Item Type | Why |
| 1 | Rainforest Mushroom | Helps upgrade Spore Factories |
| 2 | Spore-related progress items | Helps Fungus Institute upgrades |
| 3 | Hero or seasonal items | Useful if they match your account goals |
| 4 | Cosmetic or optional items | Lower priority for progression |
Exact shop inventory may vary by server or event timing. Check your shop before spending.
Best Shop Tips
- Do not buy everything immediately.
- Focus on items that improve seasonal progress.
- Compare shop value with your current bottleneck.
- Save War Merit if better items unlock later.
- Free-to-play players should avoid low-impact purchases.
Season 6 Map and World System 🗺️

The Season 6 map is very large. It is about the same size as the Season 5 map and roughly equal to nine Season 0 maps.
This makes movement, territory planning, and alliance coordination very important.
| Map Feature | Why It Matters |
| Very large map | Marching and relocation timing matter more |
| Multiple warzones | Season grouping includes several warzones |
| Clan conflict theme | Deepwood and Wetland conflict drives the story |
| Cities | Important for resources and rewards |
| Strongholds | Important for map control and first-capture rewards |
| Alliance planning | Random movement can waste time |
Because the map is huge, do not play Season 6 like a small-map event. Long marches, slow reinforcements, and poor positioning can hurt your alliance.
Map Tips
- Stay near your alliance unless told otherwise.
- Do not teleport randomly far from your hive.
- Follow alliance route planning.
- Join captures when called.
- Watch enemy movement during active war periods.
- Save teleports for important objectives.
Factions, Clans, and Grouping 🏹
Season 6 has a strong faction theme. The story focuses on the Deepwood Clan and Wetland Clan, while the Great River Clan plays an important role in the rainforest’s balance.
During Pre-Season, the grouping menu shows the warzones included in your Season 6 group. The season grouping includes 8 warzones total, including your own.
Faction details become clearer as Pre-Season progresses, especially around the Faction Award and Faction Reveal stage.
What Players Should Do During Grouping
- Check which warzones are in your group.
- Watch faction reveal information.
- Prepare for stronger enemy alliances.
- Coordinate with alliance leaders.
- Discuss diplomacy early.
- Avoid starting unnecessary conflicts before plans are clear.
Grouping is not just visual information. It helps your alliance understand who you may face during Season 6.
Season 6 Quests and Alliance Milestones 🎯
Season 6 adds new main and secondary tasks to the quest system.
These quests are very important because they reward seasonal resources needed for your progress.
Season 6 Quests

Season 6 Quests work similarly to normal daily quests. You complete tasks, claim rewards, and use those resources to upgrade your seasonal buildings.
Important quest rewards may include:
- Spore
- Rainforest Mushroom
- Seasonal progress items
- Other useful resources
Quest Tips
- Complete Season 6 Quests every day.
- Claim rewards before reset.
- Use rewards to upgrade Fungus Institute and Spore Factories.
- Do not ignore secondary tasks.
- Check if quests require specific building or combat actions.
Missing Season Quests daily will slow your entire season progress.
Alliance Milestones
Season 6 also brings back Alliance Milestones.
You can access them through the Alliance menu under Season Milestones. These milestones reward alliance activity and give hints about important seasonal objectives.
Alliance Milestones are useful because they encourage members to work together instead of only focusing on personal progress.
Professions in Season 6 📈
Season 6 keeps the profession level cap at Level 100.
However, the Diplomat profession is not available in Season 6.
| Profession Detail | Season 6 Status |
| Profession level cap | Level 100 |
| Diplomat profession | Not available |
| Other profession skills | Available depending on your setup |
| Best approach | Choose skills based on role and alliance needs |
Profession Tips
- Do not spend profession points randomly.
- Pick skills that match your role.
- Combat players should focus on war value.
- Support players should focus on alliance utility.
- Check Season 6-specific skills before committing.
- Save resets until you understand your alliance role.
Professions can make a big difference, especially during alliance objectives and territory fights.
Braz UR Upgrade and Season Boost 🚀

Season 6 introduces a UR upgrade path for Braz.
This is important for players who already built Braz or want to add another upgraded hero option to their lineup.
Should You Upgrade Braz to UR?
It depends on your account.
| Player Type | Recommendation |
| Already invested in Braz | Consider the UR upgrade if he fits your team |
| Newer player | Check whether Braz helps your main squad first |
| Free-to-play player | Be careful with upgrade materials |
| Heavy spender | Upgrade if it supports your lineup or strategy |
| Unsure player | Wait for more testing before spending heavily |
Do not upgrade Braz only because the event appears. Make sure he has a role in your squad.
Season 6 Boost
Season 6 also includes seasonal boost content. Some hero-related boosts may be hidden at the start and appear when the related hero event becomes active.
The Season 6 themed base skin is Enchanted Fungus, which becomes available after the main season starts.
Season Battle Pass and Weekly Pass 🎟️
Season 6 includes both a Season Battle Pass and a Weekly Pass.
These can speed up seasonal progress, but they are not required for every player.
Season Battle Pass

The Season Battle Pass lasts 49 days.
It includes free and paid reward tracks. Paid tracks can provide more resources, but players should understand the purchase structure before buying.
Important Battle Pass rewards may include:
- Rainforest Mushroom
- Seasonal resources
- Combat readiness rewards
- Progress items
- Other useful materials
Battle Pass Tips
- Buy early if you plan to buy, because daily value matters.
- Do not buy only for one item unless it is worth it to you.
- Free-to-play players should still claim all free rewards.
- Check reward columns carefully before purchasing.
- Remember that paid tiers may be separate purchases.
Weekly Pass

The Weekly Pass lasts 7 days after purchase. It is available during most of the season but may not be available in Week 8.
Possible Weekly Pass benefits include:
| Benefit | Why It Helps |
| Extra Spore Factory | Produces more Spore while active |
| Temporary Virus Resistance bonus | Helps fight stronger enemies |
| Zombie march speed bonus | Speeds up farming |
| Rainforest Mushroom | Helps Spore Factory upgrades |
| VIP Points | Extra account value |
| Daily Protector Horns | Supports seasonal unit systems |
| Daily stamina | Helps with farming and quests |
| Daily speedups | Helps general progress |
Should You Buy the Weekly Pass?
| Player Type | Recommendation |
| Free-to-play | Skip and focus on daily quests |
| Light spender | Consider it if you play daily |
| Active alliance fighter | Useful during early progression |
| Casual player | Only buy if you can claim daily rewards |
| Heavy spender | Strong value if pushing fast progress |
The extra Spore Factory can be useful, but it only works while the pass is active.
Season 6 Rewards and Stores 🎁
Season 6 rewards return to an Alliance and Faction rewards structure.
Exact reward tiers may vary by server and season update, so always check the in-game reward preview before the season ends.
Reward Types
| Reward Type | Based On |
| Alliance Rewards | Alliance performance and territory progress |
| Faction Rewards | Faction result and season participation |
| Contribution Recognition | War Merit, capture, and defeat metrics |
| Store Rewards | Items purchased through seasonal stores |
Season 6 Contributions
Season 6 contribution rankings can include:
- War Merit
- Capture
- Defeat
These rankings may not directly give automatic rewards, but alliance leaders may use them when distributing loot rewards earned from territory captures.
Season 6 Stores
Season 6 includes several store types:
| Store | Main Use |
| Honor Store | General honor-based purchases |
| Season Store | Seasonal reward items and skins |
| Cosmetics Store | Cosmetic purchases, including seasonal skins |
| War Merit Shop | Uses War Merit for useful items |
The Season Store is similar to the Season 5 store, with some additional items such as Tycoon’s Mansion. Store availability may reset when Season 6 starts on your server.
Best Season 6 Priorities for Beginners ✅
Season 6 can feel overwhelming at first, but beginners should focus on a few important priorities.
Priority 1: Upgrade Fungus Institute
The Fungus Institute increases Virus Resistance. This should be your main personal progression building early in Season 6.
Priority 2: Build and Upgrade Spore Factories
Spore Factories produce Spore, which is needed for Fungus Institute upgrades. Get your production started early.
Priority 3: Complete Season 6 Quests Daily
Season Quests give important resources like Spore and Rainforest Mushroom. Missing them slows your progress.
Priority 4: Save Rainforest Mushroom
Rainforest Mushroom is needed for Spore Factory upgrades. Do not waste it before unlocking and leveling your factories.
Priority 5: Join an Active Alliance
Season 6 has alliance and faction rewards. An inactive alliance will fall behind in map control, milestones, and reward opportunities.
Priority 6: Use War Merit Carefully
War Merit is rare. Spend it only on useful items that help your season progress.
Priority 7: Prepare for Large-Map Movement
The Season 6 map is huge. Stay close to your alliance and do not waste teleports or marches.
Priority 8: Plan Braz UR Upgrade
If Braz fits your lineup, prepare resources. If not, do not rush the upgrade just because it is available.
Best Resource Spending Strategy 💡
Here is a simple spending priority for most players.
| Priority | Spend On | Reason |
| 1 | Fungus Institute | Increases Virus Resistance |
| 2 | Spore Factories | Improves Spore income |
| 3 | Season Quests and goals | Gives steady seasonal resources |
| 4 | War Merit Shop priority items | Helps with seasonal progress |
| 5 | Protector’s Field | Useful if required for seasonal combat |
| 6 | Braz UR upgrade | Only if Braz fits your lineup |
| 7 | Cosmetics | Lowest priority for progression |
For free-to-play players, personal seasonal economy should come first. Focus on Fungus Institute and Spore Factories before optional systems.
Alliance Strategy for Lost Rainforest 🏰
Season 6 is heavily alliance-focused. Personal progress matters, but alliance organization will decide how well your group performs.
What Alliance Leaders Should Plan
Alliance leaders should prepare:
- Pre-Season grouping analysis
- Faction strategy
- Alliance Safe Time schedule
- Large-map relocation planning
- City capture priorities
- Stronghold capture priorities
- War Merit production goals
- Rally leader availability
- Defense teams
- Season Milestone coordination
- Reward distribution rules
- Member activity requirements
What Normal Members Should Do
Normal members can help by:
- Completing Season Quests daily
- Upgrading Fungus Institute
- Building Spore Factories
- Joining alliance rallies
- Helping with captures
- Following relocation instructions
- Saving teleports for important movements
- Watching faction updates
- Reporting enemy activity
- Avoiding random fights
- Staying active during alliance push windows
You do not need to be the strongest player to help your alliance. Activity, timing, and teamwork matter a lot.
Free-to-Play Tips for Season 6 🎯
Free-to-play players can still make solid progress in Lost Rainforest with smart planning.
Best F2P Tips
- Stay in an active alliance before Season 6 starts.
- Complete Season Quests every day.
- Upgrade Fungus Institute steadily.
- Upgrade Spore Factories efficiently.
- Save Rainforest Mushroom for important upgrades.
- Use War Merit carefully.
- Claim all free Battle Pass rewards.
- Do not chase cosmetics before progression.
- Plan Braz UR upgrade only if he helps your squad.
- Avoid wasting teleports on the huge map.
- Join alliance captures and events when called.
- Focus on one main squad instead of spreading resources too thin.
The best free-to-play strategy is consistency. Season 6 rewards players who log in daily, follow alliance plans, and avoid wasting seasonal resources.
Mistakes to Avoid in Season 6 ⚠️
Season 6 can punish careless players. Avoid these common mistakes if you want smoother progress.
1. Ignoring Fungus Institute
This is one of the biggest mistakes. The Fungus Institute increases Virus Resistance, which helps with zombies, Doom Elites, and Stronghold protectors.
2. Not Building Spore Factories Early
Spore Factories produce Spore over time. The earlier you build them, the more value they give across the season.
3. Spending Rainforest Mushroom Randomly
Rainforest Mushroom is needed for Spore Factory upgrades. Do not waste it before checking your priorities.
4. Wasting War Merit
War Merit is rare and shop-based. Spend it carefully on items that support your progress.
5. Staying in an Inactive Alliance
Season 6 has alliance and faction rewards. If your alliance is inactive, your rewards and map progress will suffer.
6. Ignoring Pre-Season Information
Pre-Season reveals grouping, faction details, rewards, and important preparation events. Do not wait until Week 1 to pay attention.
7. Teleporting Randomly on the Large Map
The Season 6 map is very large. Bad positioning can waste time and make it harder to join alliance actions.
8. Buying Passes Too Late
If you plan to buy the Battle Pass or Weekly Pass, buying late may reduce the value you get from daily rewards.
9. Upgrading Braz Without a Plan
Braz UR upgrade can be useful, but only if he fits your lineup. Do not spend resources blindly.
10. Ignoring Season Quests
Season Quests are one of the easiest ways to gain Spore and Rainforest Mushroom. Missing them every day creates a big gap over time.
FAQs
What is Season 6 Lost Rainforest in Last War Survival?
Season 6 Lost Rainforest is the sixth major season in Last War: Survival. It introduces the Shadow Rainforest, Deepwood Clan vs Wetland Clan conflict, Spore, Rainforest Mushroom, War Merit, Fungus Institute, Spore Factory, and new season rewards.
What is the main goal of Season 6?
The main goal is to improve Virus Resistance, upgrade seasonal buildings, collect Spore and Rainforest Mushroom, earn War Merit, support your alliance, and compete for alliance and faction rewards.
What is Spore used for in Season 6?
Spore is used to construct and upgrade the Fungus Institute, which increases Virus Resistance.
What is Rainforest Mushroom used for?
Rainforest Mushroom is used to construct and upgrade Spore Factories and other seasonal structures. Spore Factories produce Spore over time.
What is War Merit used for?
War Merit is a rare Season 6 resource used in the War Merit Shop. It can be used to buy useful seasonal items.
How do I increase Virus Resistance in Season 6?
You increase Virus Resistance mainly by upgrading the Fungus Institute using Spore.
What does the Spore Factory do?
The Spore Factory produces Spore over time. It can be upgraded with Rainforest Mushroom and can unlock additional factories as it reaches certain levels.
Is Braz worth upgrading to UR in Season 6?
Braz can be worth upgrading if you already use him or if he fits your lineup. If he does not help your main squad, save your resources until you are sure.
Is Season 6 good for free-to-play players?
Yes, free-to-play players can still do well by completing Season Quests daily, upgrading Fungus Institute, improving Spore Factories, saving War Merit, and joining an active alliance.
Conclusion
Season 6: Lost Rainforest is a major rainforest-themed season in Last War: Survival. It introduces Spore, Rainforest Mushroom, War Merit, Fungus Institute, Spore Factory, Protector’s Field, War Merit Shop, faction-related rewards, and Braz UR upgrade.
The best strategy is to focus on your Fungus Institute, build strong Spore Factory production, complete Season 6 Quests every day, and spend War Merit carefully.
For alliances, Season 6 is about preparation, large-map coordination, faction planning, and active participation. If your alliance stays organized and your personal progression stays on track, Lost Rainforest can give strong rewards and better long-term account growth.
For more beginner-friendly Last War: Survival guides, you can explore more strategy articles on Heaven Guardian.



