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After the Collapse
ATC is a base building game set in a post-apocalyptic world featuring urban environments. Build a base across several layers with dozens of survivors. Fight other factions for the control of the remaining production centers and explore the world to find long forgotten resources and technologies.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via SteamSpy as of 2026-05-14.
“After the collapse takes gameplay style notes from games like "Rimworld" and "Prison Architect". You build a colony in the ruins of a nuclear war-ravaged civilization. It's different enough from Rimworld in tone and in gameplay that it stands apart. It's worth investing some…”
— a player, Steam review · 9 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-08-02 23:03 UTC · history via SteamCharts.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Small Bugfix Patch
Just a couple of bug fixes Fixed: Upgrading a bed (or otherwise 'cargo-less' furniture) would cause a crash. Fixed: During POI defense missions, dead survivors and mercs would not be recorded at the e
After The Collapse – v2.0.0 is out!
Hi there! So, after a longer hiatus than I'd have liked, v2.0.0 is finally out, and it's a big one. This update has two sides to it: a major engine overhaul under the hood, and a solid chunk of new co
Maintenance Patch 1.5.1.1
This is a small maintenance patch fixing the non functioning recycling bench in 1.5.1. When updating the UI, the "queue recipe" button for this bench got accidentally removed. This is now fixed. My ba
Update 1.5.1: New Sound Library
Hello, ATC gets a new sound library! So I am aware that some of you (especially those using Windows Home edition in parts of Europe and Asia) are experiencing audio-related issues, crashes, and bugs s
Spiderling Content Update 1.5.0
I'm happy to announce the release of After The Collapse 1.5.0 , one of the biggest content updates to date. This Spiderling Content Update brings many new features, significant UI improvements, and ex
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From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-14.
| Genres | Indie, Simulation, Strategy |
| Player tags | Colony Sim · Base-Building · Survival · Strategy · Management · Sandbox · City Builder · Procedural Generation · Singleplayer · Post-apocalyptic · Moddable · Crafting (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Steam Workshop · Steam Cloud · Stats · Steam Leaderboards · Family Sharing |
| Languages | English * , French * |
| Achievements | 43 |
| Estimated owners | 20,000 – 50,000 (SteamSpy) |
| Official site | https://www.anarkisgaming.com |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS *: Windows 7 (64 bit) Processor: Dual Core 2Ghz Memory: 4 GB RAM Graphics: DirectX 9 compatible GPU with 512MB VRAM DirectX: Version 9.0c Storage: 2 GB available space