🖼️ Visual quick guide
Open the full-size visual guide.🟦 Facts
- Season 2 Celebration begins after the active Polar World season and introduces the Age of Oil progression.
- Day 57 is the maintained current rollout opening point for Age of Oil and Celebration Week 1.
- Celebration is a five-week phase, with Weeks 1–4 carrying the main progression missions and Week 5 finishing longer-running systems.
- Celebration progression is permanent account growth rather than temporary Polar World building power.
- Season 2 Day 89 falls in Celebration Week 5 and is the Overlord Gorilla availability point.
Celebration Week 1Unlock the Age of Oil tech path, expand the base again, establish Oil production, and begin the HQ31–35 route.
Celebration Week 2Dripper, Secret Oil Tasks, and truck-dispatch activity appear; Bingo, Black Market, and Champion Duel may also begin depending on rollout.
Celebration Week 3Higher-level Zombie access, Rapid Rescue healing activity, and Major Construction become the main themes.
Celebration Week 4Lv. 31–35 Doom Elites, Unit Training, and Tech Breakthrough push account power upward.
Celebration Week 5 · OverlordDay 89: Overlord Gorilla becomes available. Begin that rescue/recovery path while finishing remaining Celebration systems.
🧭 How to think about Celebration
Your real prize
- Permanent Oil income.
- Permanent research unlocks.
- HQ31–35 access and prerequisites.
- Better timing on construction, training, and research missions.
What is secondary
- Short-lived leaderboard chasing that breaks your normal plan.
- Blindly copying an older Week 2 / Week 3 event date.
- Spending Oil without checking the next prerequisite.
- Ignoring Day 89 until Overlord is already open.
🟩 BlackBar Gaming recommends
- Treat Celebration as the start of your post-HQ30 economy, not as downtime. Oil income compounds slowly and rewards early setup.
- Use each week's activity to support permanent progression instead of letting a temporary ranking distract you from Oil, research, and HQ work.
- Black Market timing has changed across server generations; use the live Celebration menu instead of assuming an older Week 2 or Week 3 date.
🟥 Warning
- Celebration event names and exact start days have shifted between rollouts. The five-week structure, Age of Oil, and Day 89 Overlord handoff are more stable than individual side-event labels.
- If your live event timer differs, follow it rather than a maintained screenshot.