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Extinction Day

Also known as Extinction Day, ed, extinction day

End humanity using disasters, plagues, and war. Spread chaos worldwide, combine catastrophic events, and stop them before they escape to the Ark.

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Last update
29 May 2026
Players now
6
Original sources
1
Latest update
Announcement

Achievements + Disaster deployment fix

-Fixed an issue with the achievement manager that would prevent achievements for being awarded or that would award achievement even if you lost a scenario (when the achievement required you to win that scenario) -Fixed…

2 changesFix
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Latest updates

Update history

Browse past updates and patch notes for this game.

13updates

Older updates
Gallery

In-game media

Achievements

Community progression

Top picks from 23 Steam achievements, sorted by player unlock rates.

  • Baby StepsComplete the Prologue.73.1%
  • Fast CollapseTerminate 3 or more regions within 30 days of each other.39.8%
  • Demolitions ExpertPush back the ARK's progress by 20% or more in a single scenario.38.6%
  • No Social InfluenceWin a scenario without spending any Influence points.35.5%
  • We Will Get Them Next TimeLose a scenario.35.4%
  • MassacreWin a scenario with ARK progress at 40% or lower.30.5%