Season 4: Lighthouse, Blood Night & the Copper War
How Lighthouse brightness and electricians work, what changes during Blood Night, and how the Copper War is won.
The Lighthouse
Darkness slows marches, cuts resource output and makes zombies stronger. Your Lighthouse pushes it back.
| Brightness | Light area | Virus Resistance | Morale |
|---|---|---|---|
| 1 | 5×5 | +50 | – |
| 2 | 11×11 | +150 | – |
| 3 | 17×17 | +250 | +3% |
| 4 | 23×23 | +250 | +5% |
Higher brightness uses much more power, and Blood Night adds a big extra drain. Your Optoelectronic Lab level caps how bright you can go.
Generators and electricians
You have 4 Generators. Each costs Stone to repair and is switched on by killing world zombies, and each gives you an Electrician. Electricians supply power to Lighthouses, your own or allies', up to 50 per Lighthouse.
Blood Night
Three times a day (02:30, 10:30 and 18:30 server time) for 30 minutes:
- Enemies need +500 more Virus Resistance.
- Zombies drop more Tactics Card packs.
- First-kill progress restarts at level 1 each night, but your progress is kept. Clear low levels one night and start higher the next.
- Lit bases are safe from wandering zombies.
| Stage | When | What appears |
|---|---|---|
| 1 | Week 1 | Wandering zombies and Doom Elites |
| 2 | Week 2 | Wandering Oniwagon (rally it for Magatama and Epic Tactics Cards) |
| 3 | Weeks 3–7 | Oni Legion, which targets lit bases |
| 4 | Week 8 | Holy Mountain: charge it to end Blood Night for good |
Oni Generals spawn on cities during Blood Night. Defeat the one on your city to unlock its buff.
Cities and Strongholds
- Up to 2 declarations and 2 Stronghold captures a day, with a maximum of 6 Cities and 6 Strongholds.
- Cities produce Copper (the ranking resource). Strongholds produce Stone.
- No cross-warzone captures this season.
The Copper War (weeks 4–7)
Wednesday and Saturday, eight battles. The factions take turns attacking.
- Monday: Copper ranking.
- Tuesday: R4+ declare (up to 3 attackers per defender).
- Wednesday: invitations, then battle at 12:30 server time (20–40 minutes).
Plunder: 3% per warehouse destroyed and 6% for the Alliance Center, up to 15%. You can win plunder even in a war you lose. Destroying the Center ends the war as an attacker win.
Warlord Atomic Breath and the Butler's new Tesla Coil are the big alliance skills this season.
Faction Duel (week 7)
Points earned Monday to Saturday decide invasion rights, and the battle is Sunday at 12:00 server time. The Capitol and its 3 cannons add millions of Copper to the winning faction.
Sources
Compiled from community guides (last checked October 2026). Season details changed between servers and patches, so trust the in-game Season screen if something differs.