I have got 123 hours played in the game. That's everything though, 100% completion and all Steam achievemens - that means the main campaign played twice, one on hard and one on new game+, then all collectibles, riddles, trophies, side missions, all challenge maps as Batman as well as Robin and Catwoman. To delete all the game files from your PC, there's a few options. These options delete the game from your Steam Library and from your computer, but you still retain your paid licences so you can reinstall the game. 1. From the Steam client, right-click the game in your Steam Library > Manage > Uninstall. oZ0B8Bq.