When did you get hit by "the tetris effect" AKA playing a video game so much that you get the urge to do moves/actions from the video game in real life?
When I got hooked on Morrowind in middle school it occurred to me to quicksave before a test at school.
Absolutely assassins creed. Especially 2, and i know plenty of you MFS know what I'm talking about, you can see the path up every single building around you