Is there a program that bans me from using a program for a certain amount of time?
Solution 1:
Is that game online? sudo apt-get purge firefox-or-whatever-your-browser-is.
Just kidding. I will tell you as a recovering video-game addict that the only thing that made me stop playing a game in the short run was to decide to stop playing that game - period. I always found a way around whatever self-imposed barrier I put in front of me if I was going to play it later. Only making up my mind to not play it at all worked.
If your eye offends you, pluck it out.