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Extinction Day
End humanity using disasters, plagues, and war. Spread chaos worldwide, combine catastrophic events, and stop them before they escape to the Ark.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.
“Rating: 15+ (Mature Themes not suitable for younger audiences) Parental Notice: Play it yourself before you hand over the controls, this could be too much for the 12+ Category. Graphics: Not quite Toaster Compatible, but runs OK on a SteamDeck using a 4K Monitor as a Peripheral.…”
— a player, Steam review · 36 hrs played“A huge fan of Bio Inc so was super excited when the devs started this, it's a very tentative thumbs up because there is a lot of potential here. It's different enough from Plague Inc that you'll have a good time but the mechanics of it all seem a bit janky and less polished than…”
— a player, Steam review · 6 hrs played“I genuinely do not understand why you have to beat stage 2 on every difficulty before moving on to stage 3. I was having a decent time, but doing the same thing over and over again is not interesting. Also, why bother with difficulty settings if they aren't optional? Baffling…”
— a player, Steam review · 3 hrs playedPlayer activity
Monthly average concurrent players. History through 2026-08 via SteamCharts; self-collected from the Steam API since Aug 2026.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
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 tha
Extinction Day: Community Feedback Update is now live!
Over the past 5 weeks we have been listening closely to your feedback and focusing on the biggest issues reported since launch. This update is one of our biggest so far and heavily focuses on onboardi
Update #2 is now live.
Hey, we keep listening to your feedback and improving the game. Update #2 is here with balance changes, UI improvements, and stability fixes. Balance Changes • Moral Decay now removes 1% of Ark progre
Hotfix to prevent crashes and Warfare balance update.
Hotfix (v1.0.310.724) Bug Fixes -Added additional safeguards to prevent game crashes Balance Changes -Adjusted Warfare (Chapter 2) Blood requirements for expansion by approximately 10–15%
Hotfix Patch – Bug Fixes and Improvements
Hotfix Changes Balance Mission 10: Increased the number of Souls available in territories Bug Fixes Fixed an issue where Out of Energy disasters would not resume after Energy was freed up Fixed a bug
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-26.
| Genres | Indie, Simulation, Strategy |
| Player tags | Outbreak Sim · Real-Time with Pause · Simulation · God Game · Resource Management · Sandbox · Political Sim · Management · Dystopian · Destruction · Grand Strategy · Dark (Steam store community voting) |
| Features | Single-player · Steam Achievements · Steam Cloud · Family Sharing |
| Languages | English * , French, Simplified Chinese, Russian, German, Spanish - Spain, Portuguese - Brazil * |
| Achievements | 23 |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10/11 (64-bit) Processor: AMD Ryzen 5 1600 / Intel Core i5-8400 Memory: 8 GB RAM Graphics: AMD RX 550 4 GB VRAM / NVIDIA GTX 1050Ti 4 GB VRAM Storage: 2 GB available space