A monthly three-alliance battle on the Lost Canyon map, where Fuel decides how much you can do.
TL;DR Budget your Fuel, take buildings as a team, assign Guardians early, and save enough for the Frozen Citadel at the end.
When
Monthly, battle on Thursday
Battle
60 minutes
Size
3 alliances per map
Needs
Top-20 alliance, Furnace 16+
🗓️Event week
Days
Stage
Saturday – Sunday
Voting on battle time
Monday – Tuesday
Registration
Wednesday
Matchmaking
Thursday
Battle
From the official help center. Some community guides say Saturday; trust the in-game schedule.
⏱️Battle phases
Phase
Length
Focus
Preparation
3 min
Position your squads
Seize & Conquer
17 min
Capture neutral buildings for points
Fortress Occupation
20 min
Contest the high-value Fortresses
Citadel Onslaught
20 min
Fight for the central Frozen Citadel, the top-scoring objective
👥Legions & eligibility
Your alliance must be in the top 20 by power. Players need Furnace 16+ and must join before registration.
Up to 2 legions, each choosing its own time slot, and rewards are counted separately. Each takes up to 30 combatants + 10 substitutes (15 combatants minimum).
The second legion needs Alliance Level 6 and at least 40 members active that week.
Players offline for 5+ days normally can’t be newly dispatched.
⛽Fuel, Guardians & revives
Fuel is spent to deploy, conscript, advance, retreat and instantly revive. It regenerates over time.
R4/R5 can appoint Guardians to held buildings for more fuel income. A chief garrisoned in an eligible building can appoint themselves, and each player can guard one building at a time.
Defeated squads revive at your Bastion on a timer, or instantly for fuel.
Leaving the battle starts a 12-minute re-entry cooldown.
🎯Strategy
Save fuel for the Citadel Onslaught. It’s worth the most.
Split targets across the alliance so everyone isn’t rushing the same building.
Hold chokepoints and buildings rather than chasing kills.
You score personal merit too. You need at least 10,000 for personal ranking rewards, and alliance rewards depend on final placement.