Games Like ShelfSpace

Your games are bigger than they need to be

ShelfSpace compresses installed games with the compression built into Windows, the same engine as compact.exe. Games take less space and keep running exactly as before: no repacking, no mods, nothing to extract before you play.

See the savings before anything is touched

Press Estimate and ShelfSpace samples every game you include with the real algorithm, then shows how much you can free as a low–high range. Games that would gain almost nothing are tagged and left alone. Only then press Compress.

Fast, and it stays compressed

Games stay intact

Files are compressed in place by the file system, and games read them normally. We ran Steam's "Verify integrity of game files" after every compress, decompress and cancel in testing, and Steam never had to re-download a file. Any game can be decompressed back to full size at any time.

More than compression

How much will I save?

It depends on the game. In our tests with LZX, Dota Underlords freed 805 MB, Unturned 752 MB and Stumble Guys 599 MB — roughly a quarter to a third of their size — while Brawlhalla, which ships already-compressed data, freed only 22 MB. The estimate tells you which kind each of your games is before you spend any time on it.

Good to know