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.
| App ID | 727570 |
|---|---|
| App type | Game |
| Developer | Anarkis Gaming |
| Publisher | Anarkis Gaming |
| Homepage | https://www.anarkisgaming.com |
| Release date | 2022-09-09 15:53 UTC |
| Release state | released |
| Content descriptors | General Mature Content |
| Workshop | Visible |
| Store page | store.steampowered.com/app/727570 |
| Last store refresh | 4 hours ago |
| # | Executable | Arguments | OS | Description |
|---|---|---|---|---|
| 0 | Collapse.exe | windows | ||
| 1 | Collapse.exe | Safe | windows | in Safe Mode (disable mods) |
No player history yet. This app is now tracked, so data will appear within about ten minutes.
| Playing now | Not polled yet (never) |
|---|---|
| 24-hour peak | |
| All-time peak (tracked) |
All Steam store regions, converted to USD at today's exchange rate, compared with the US price. Lowest is the lowest price SteamRaw has recorded for that region.
Loading regional prices…
| Date | Price | Regular | Discount |
|---|---|---|---|
| 2026-09-11 21:22 UTC | $14.99 | $14.99 |
| DLC | AppID | Release | Price |
|---|---|---|---|
| No DLC known for this app. | |||
| Branch | Build ID | Description | Updated | Password |
|---|---|---|---|---|
| public | 24093103 | 2026-07-07 15:27 UTC | ||
| nightly | 24093103 | Experimental Branch | 2026-07-07 15:25 UTC | |
| old-150 | 18612808 | Legacy version - 1.5.0 | 2025-05-27 16:00 UTC | |
| old-151 | 19347566 | Legacy version - 1.5.1 (Win7 Compatible) | 2025-07-24 18:01 UTC | |
| old-125 | 13925277 | Legacy version - 1.2.5 | 2024-05-15 07:31 UTC | |
| old-085 | 7394634 | Legacy version - 0.8.5 | 2022-09-27 20:23 UTC |
| Depot | Name | OS | Size | Download | Public manifest | Notes |
|---|---|---|---|---|---|---|
| 228989 | windows | from app 228980 · shared install | ||||
| 228990 | windows | from app 228980 · shared install | ||||
| 229007 | windows | from app 228980 · shared install | ||||
| 229020 | windows | from app 228980 · shared install | ||||
| 727571 | 3.56 GB | 772.19 MB | 2095770273677097350 | branches: nightly, old-150, old-151, old-125, old-085 |
A build is one published version of the game's files on a branch. Steam assigns a new build ID every time the developer pushes an update, so this list is the update history of the app. The files inside a build (depot manifests) are only readable with an account that owns the game, which SteamRaw does not have yet, so build contents are not shown.
| Build ID | Branch | Updated | First seen |
|---|---|---|---|
| 24093103 | public | 2026-07-07 15:27 UTC | 5 hours ago |
| 24093103 | nightly | 2026-07-07 15:25 UTC | 5 hours ago |
| 19347566 | old-151 | 2025-07-24 18:01 UTC | 5 hours ago |
| 18612808 | old-150 | 2025-05-27 16:00 UTC | 5 hours ago |
| 13925277 | old-125 | 2024-05-15 07:31 UTC | 5 hours ago |
| 7394634 | old-085 | 2022-09-27 20:23 UTC | 5 hours ago |
Every appinfo change SteamRaw has observed, grouped by changelist. Tags, features, languages, builds, depots, prices and any other key Steam publishes. Tracking since 2026-09-11 21:22 UTC.
No changes recorded since SteamRaw first saw this app. Every future PICS change will be listed here.
| Changelist | Apps | Packages | Seen | What changed |
|---|---|---|---|---|
| No changelists recorded for this app yet. | ||||
Just a couple of bug fixesFixed: 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 end of the mission.
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 content on top. As usual, I'll go over the main changes in the article proper, while the rest is in the changelog at the end.Enjoy!Under the hood firstThis took quite a while to write, but I ported the game from .NET Framework 4.7 to .NET 10, which is essentially a complete engine migration. MonoGame, Penumbra lighting, OpenAL, everything got updated to current modern versions. The result is noticeab
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 bad it took so long, it sorta coincided with me going to vacations in July. Have a nice day!
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 since v0.8, with some versions of the game behaving better than others. Sometimes downloading a Windows package helps, but other times, nothing seems to work. Because it seems to be a more common issue than I initially thought, I ported the game to a third and final sound library that doesn't suffer from the same problem (this time, it's OpenAL). As far as I can tell, this should fix any remaining
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 expanded faction content. This article only covers the main changes. As usual, check the change-log at the end for a complete list. Arakan Faction Expanded The playable Arakan faction archetype has received substantial improvements in this update. I've expanded their technology tree with themed buildings and unique game-play mechanics that truly set them apart from other factions. Arakans can now bre
Hi there! Here's a new sizable update for After The Collapse. I'll also talk about the planned DLC somewhere below in this article. I know, I know, I'm a tad behind schedule. Nothing's new :) Anyway, this version 1.3.5 brings substantial improvements to the world map faction AI, game balance, and visuals. As usual I will go over the main changes only, you can refer to the full changelog at the end for the nitty gritty details. Graphics Overhaul This update includes a major visual refresh across multiple aspects of the game. All body and head armor sprites have been completely redone with a muc
Hi there! So, as expected, here's the long-awaited announcement for the upcoming DLC dubbed Echoes of the Machine. It should be made available in mid-March 2025. It will feature a new multi-map storyline and a ton of late-game content. Before I explain what it should contain, please understand that this is still in early development, and some of the stated features below are subject to potential changes. This article is more about giving you a general layout for the DLC than explaining everything point by point exactly as it will be. With that in mind, let's dive in! 🙂 New Story Mode I'm not
Hi! this is a small / medium patch prior to a big announcement you'll get next week. As usual, this update should be compatible with prior save-games and existing, compatible, mods. Cats (and pets) Cats have been added to the roster of pets your survivors can have. There are 4 different colors, and they have a much more varied animation set than other pets. They do sleep, have 2 different idle animations, and will actively avoid combat (making them a lot more survivable than dogs for instance), They are also only "roughly" following their owner, instead of sticking to them like glue. {STEAM_CL
Hi, This is a simple patch fixing 2 problems in the latest update. Expect another patch in the coming days, following by an announcement. Bug Fixed: Truce immediately stopping with bandits (regression bug 1.3.0) Raids would occur even if you're underground and never breached the surface (regression bug 1.2.8) Mod uploader stopped working (regression bug 1.2.8)
Introducing the 1.3.0 Update for After the Collapse! Hi there! This new update brings a wealth of exciting new content and features to the post-apocalyptic wasteland of After the Collapse. Let's dive in and take a look at what's new! Weapon Variants: This is the first step in introducing procedurally generated loot. This update introduces rare, modified weapons to the loot and trade tables. From armor piercing and shock ammo to elite rifles with boosted stats, the total number of weapons has been multiplied by about 8. {STEAM_CLAN_IMAGE}/33563935/2edce4df6e92d1b9fbc3d5bd5ab635acc025a59d.png Wh
Hi there! Let's get the bad news out of the way: this update is only partially compatible with older save-games (saves will load, but it'll be buggy). It's possible to rollback to 1.2.5 to finish your game if you need to. I'll explain how-to in this very article. As usual, the full change-log is at the bottom of this post. Now, let's get to the good stuff! Dynamic Raid System It's not really a secret that the event system was starting to show some cracks, especially when it comes to enemy raids. Until now, ATC was relying on an extensive list of semi hard-coded raiding groups, which would unlo
Hello! This is a mid-sized update with no particular theme. It is compatible with existing saves and mods, but due to changes in the way damaged weaponry is handled, you may need to redo your weapon and armor maintenance stations' queues. This short article details the main changes while the change-log at the bottom lists every single change, as usual. Enjoy! Combat AI Your survivors (and relevant enemies) can now automatically switch between melee and ranged weapon based on the situation. It takes into consideration the ammo left in the ranged weapon, the DPS, and range of each weapon before
Hi there! As promised, here's a new update focusing on the prisoner system. With the recent introduction of a prisoner-centric faction archetype, the Arakans, it really needed some love. Of course, it's far from the only change in this update, which should make your whole population easier to manage. As usual, the full change-log is at the bottom. I highly recommend to give it a look, as many important details will only be mentioned there. I am a bit short on time today, so the article is shorter than usual, while the change-log is more detailed to compensate. Enjoy! Prisoner System First thin
Hey there! I hope you all had a good holiday season. Let's hope this year will be better than the last. Here's a small patch for 1.2 focusing on recent player feedback. It's fixing a few bugs and balancing issues. It's nothing major. Unless some major crash or bug pops up, this will likely one of the last "hotfix" for the Rebirth update, next patches will add proper content (on top of the usual fixes and tweaks). Expect a full devlog in a few days. 1.2.3 Changelog Balance: During the Main Story, "experienced" trait progression is reset in between acts, so new players don't get overwhelmed by 3
Hi, This is a small patch to fix the issues found in 1.2, most of which are related to the Arakan playable faction archetype. There's no need to reset your progress or anything like that. The main visible change, beside a few minor graphical improvements, is the new bone carving station. As the name implies, all bone-related recipes (mainly a thing for cannibals and mutants) have been moved there. It means that the bone armor is now available right from the start, possibly making the very early game a bit easier for those factions. 1.2.2 Changelog Fixed: Possible crash in "Scenario->Custom->Eq
Full appinfo as delivered by Steam PICS, changenumber 37699073. Also at /api/app/727570/raw.
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