Arms race calendar

The arms race (in game under “Special Events” → “Points overview”) changes its theme every four hours: Airship Upgrade, Unit Boost, Hero Boost, Tech Research or Base Buildings. If you know what comes next, you save speed-ups and resources for the matching window — points only count for what fits the running theme.

Day 1 is Monday, day 7 Sunday (server time). The day starts at 00:00 server time, which is 04:00 German summer time.

Round times in server time are the same on every server. The order of themes is so far confirmed by screenshot from one server; an independent player source shows exactly the same order for day 1. If you play on another server, compare once with the in-game calendar.

Calendar

Airship UpgradeUnit BoostHero BoostTech ResearchBase Buildings

Points per theme

Base Buildings

Chests from: 4,500 · 9,000 · 27,000 (Base level 23–24)

No screenshot yet: Airship Upgrade, Unit Boost, Hero Boost, Tech Research

How to use the plan

• Day 6 equals day 2 and day 7 equals day 3 — remember two days and you know four.
• Tech Research comes twice on day 3 and day 7: good for long research with speed-ups.
• Hero Boost runs twice on day 1 and day 4: save hero XP and shards for it.
• Base Buildings comes twice on day 2 and day 6: finished buildings stay gift-wrapped until you tap them — so finish them beforehand and open them in those windows.
• The times in the table header switch automatically when the clocks change.

Updated: 2026-10-04