The Steam folder in Application Support holds Steam itself and, in steamapps/common, every game you installed. Games are often 10–100 GB each. Uninstall games from the Steam library so it can track them; if you removed Steam, check steamapps before deleting the folder.
Location: ~/Library/Application Support/Steam
What’s inside
- steamapps/common: installed games
- Shader and download caches
- Steam client files
The right way
In Steam, right-click a game in your Library and choose Manage › Uninstall. Steam frees the space and remembers the game for later.
Find every folder like this on your Mac
TidyMac lists big folders outside its library, checks which app owns each one and whether that app is still installed, and explains it.
Frequently asked questions
Can I delete Steam?
Your choice: You downloaded this on purpose. Remove it if you don’t use it; you can download it again. The Steam folder in Application Support holds Steam itself and, in steamapps/common, every game you installed. Games are often 10–100 GB each. Uninstall games from the Steam library so it can track them; if you removed Steam, check steamapps before deleting the folder.
Where is Steam on my Mac?
~/Library/Application Support/Steam. In Finder choose Go › Go to Folder and paste the path.
How big does Steam get?
Usually 1 – 300 GB.