Planned Release Date: Dec 7, 2026

About This Software

Win back disk space from your installed PC games, without uninstalling a single one.

Game Library Cleaner measures each game first and shows how much it would free, as a range. Then it compresses the games you pick with the compression built into Windows: every game stays installed, and Windows decompresses its files transparently whenever the game reads them.

• Never deletes your game files. Nothing is uninstalled; the only change is the compression.
  
• No telemetry, no account. The tool itself makes no network connection.
  
• No subscription, no cloud.

Measure first, then decide

Before it touches a file, Game Library Cleaner measures a sample of each game and shows the expected saving in GB as a range. The forecast shows which games gain a lot and which gain little, so you pick only the ones worth it.


A forecast you can rely on. In every single one of our test runs, the space actually saved landed inside the range the tool showed beforehand.

Start it and carry on

Select your games and start. Compression runs at background priority. Pause it, and it stops once the files in progress are finished; resume whenever you like. A log records every file it changes. Steam can stay open while you compress Steam games: a game is compressed only when it is fully installed, not running and not being updated. To compress Epic games, close the Epic Games Launcher first; while it is running, its games are not touched.

Checked before and after

After compressing a file, the tool checks that its size is unchanged. All program files and a random sample of the other files are also compared by hash before and after. On any mismatch, it decompresses that file again and stops.

What stays untouched

• No game file is deleted.
  
• A game that is running is left alone, and files a launcher has open are skipped.
  
• Games with a known anti-cheat component in their folder are not compressed.
  
• Games that use DirectStorage are skipped.

More than just compression

Game Library Cleaner turns the proven compression built into Windows into a tool for your whole game library: a forecast before you commit, every game in one list, pause and resume, hash spot checks and a log of every change.

Works with

Game libraries from Steam, Epic Games Store, GOG GALAXY, Ubisoft Connect and EA app. Xbox app libraries are listed read-only, because the Xbox app manages them itself.

Requirements

Windows 10 22H2, 64-bit, NTFS drives. Not supported on Steam Deck or SteamOS. Native Windows app, no browser engine. Interface in English and German. Compatibility updates for at least 24 months after release.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

The user interface texts, the store description, and its translations were written with the help of an AI language model. The translations were checked by translating them back with an AI language model. No image generator was used. The logo, icons, and capsule artwork were written as vector graphics code with the help of an AI language model.