Any way to compress game files on linux? I know that all games vary, content vary and so on, but is there any things i can look out for in like an average steam game which I can compress, and the game can still run fine, tools or programs or anything?


Depends on the game. A title like dota will have a lot of savings (tens of gigabytes last I checked it). Most other games it seems don’t have obviously and easily compressible assets from a generic compression algorithm, and therefore will yield extremely minor savings.
Checked some installed games. DotA is down to 36 gb from 67. Almost 54% the original size.
RoboCop rogue city is 37->37gb. Negligible savings.