Season 4 Guide
Evernight Isle
After the ONV outbreak, the map is covered in darkness. Build light, raise Virus Resistance, capture stronger territory, and compete for Copper.
Season calendar
Choose the language that is easiest for your team to read.
Season 4 tips
Use this as the day-one checklist before the season actually opens.
Use the 10-minute start window
Season 4 starts 10 minutes after reset. Send trucks near the end so trips finish when the season opens.
Stock up on troops
Expect heavy early losses. Start training as many troops as you can before the first day.
Save Hero Return Tickets
Keep them ready and use them on the first day of Season 4.
Keep one builder free
A free builder lets you start the new seasonal buildings immediately.
Protect your Stamina
Early resources come from first kills, small zombies, Doom Elites, and Blood Night.
Keep Radar Tasks at 39/40
Once Season 4 begins, Radar Tasks can begin rewarding Stone.
Target Doom Walkers Lv. 190+
At season start, kill small zombies and Doom Elites to secure early first-kill rewards.
Consider Season Passes
Season Passes are highly recommended. If possible, get them through the Crystal Store.
Rush Lighthouse to Lv. 10
Turn on Brightness Auto-Adjustment and attach an Electrician to every troop movement.
Claim Quartz less often
Upgrade Quartz Workshops before claiming when you can. Final Workshop level affects accumulated Quartz.
Join first captures
Participate in City and Stronghold captures later to earn first-capture rewards.
Stay near Alliance Center
Keep your L1 lights on for 576 hours, or 24 days, to unlock all rewards.
Sarah Promotion Tips
Get Sarah to Lv. 160 on the Wall of Honor using SSR shards. On VS Day, put all your Skill Medals into Sarah before promoting her — promoting refunds every Skill Medal, so you can repeat this to farm VS points.
Skill tree recommendations
Engineer and War Leader references are included for quick checking.
Core progression and terminology
Use the comparison image for names, then follow the resource flow below.
Logic
Quartz Workshop
Upgrade each Workshop to Lv. 15 before unlocking the next one. Each upgrade adds a fixed +720 Quartz per hour, while Stone costs keep rising.
Optoelectronic Lab
Use Quartz here to increase Virus Resistance, then push higher-level enemies, Strongholds, and Cities.
Lighthouse priorities
Rush Lighthouse to Lv. 10 with iron and food, then pause until Optoelectronic Lab reaches Lv. 35.
If the lights go out
- March speed drops by 20%.
- Kill rewards are reduced.
- Blood Night generation drops by 30% in darkness.
- Blood Night zombies gain a 50% combat buff.
- Your base becomes vulnerable to stray zombie attacks.
Manual brightness changes disable Auto-Adjustment. Turn it back on immediately.
Maneki-neko Lucky Cats
Small Cats are individual finds. Large Cats depend on illuminated city territory.
Small Cats
Requires a squad moving with an Electrician. You can discover one per day, it lasts 60 minutes, and it cannot be shared.
Rewards include Quartz, Stone, and seasonal materials.
Large Cats
Requires illuminated city territory and Lighthouse Lv. 2 or higher. They appear only inside city squares.
Players send Electricians to complete it, then claim rewards through the Recon Airplane.
Limit: 3 claims per day, with up to 15 stacked claims.
Blood Night
Blood Night happens 3 times per day for the whole season. Each event lasts 30 minutes.
- Zombies and Doom Elites become stronger.
- Virus Resistance requirements increase.
- World-map zombies begin moving on their own.
- Bases in darkness may be attacked automatically.
- Blood Night has its own first-kill progression.
- Tactics Card drop rates increase.
- Lighthouse power consumption increases by 18,000 per minute.
Tactic Cards
Keep this chart handy during Blood Night and early-season farming.