Repackers use tools to shrink game data. For instance, a 100GB game might be compressed into a 30GB to 50GB installer.
PSA : How to install a repack on your SteamDeck running SteamOS Steam-Repacks
Since repacks are distributed through unofficial channels, there is a risk of malware or "cryptojackers" being bundled with the installer. It is critical to only use trusted sources like FitGirl or DODI . Repackers use tools to shrink game data