Nverwinter Nights 1 (Like it more than 2) - Loads of modules, ability to create your own - You can play this forever.
Operation Flashpoint (GOTY or Dragon Rising - doesn't matter) - Loads of mods, ability to create your own - You can play this forever.
Rocksmith - Will have loads of time to finally get good at it and be able to rock a few tunes. - This might just take me forever!
