I suppose since I’m a gamer, I assume everyone else is. If you’re not, or you don’t use the fantastic cross-platform digital gaming portal, Steam, this tip won’t apply to you. Check out the last couple of tips for great space saving ideas, instead. Or, heck, read a review or two on Cult of Mac. I hear they’re pretty good.
For you Steam gamers looking to save some space on your hard drive, there’s one place you should really look.
Go into the Finder, and open the ~/Library/Application Support/ folder. INside that folder will be a Steam folder, which may have a ton of files sitting around from games you don’t play anymore. Be sure to Calculate All Sizes in the View menu when viewing the Steam folder here, and sort by Size. You’ll see which games are weighing your hard drive down, and you’ll know which ones you can dump (these are the ones you don’t play any more).
When I checked my Steam Application Support folder, I found about 30 Gb of data in there, much of which is from games I don’t actually play anymore, like Civilization, or Sanctum. Deleting these files gave me a ton more space than I thought possible.
Another place to check is the main Application Support folder. Not all games, even Steam games, put their big files in the Steam folder. There may even be app support items in here from apps you deleted a long time ago. Take a look through this folder and dump what you can. Remember, though, that if you delete files a current app actually needs, you’ll probably break it and need to reinstall.
I found some great stuff in this folder, like support files for EVE Online, a game I haven’t played in way too long. Deleted!
Via: OS X Daily