Another idea, check bottom.
There are A LOT of crazy-making videogame stories out there on the 'net. Unless your treatment of the idea is phenomenal, I can pretty much guarantee that it'll be downvoted into oblivion pretty damn fast. Basing it off an extant creepypasta is not a good start.
Crazy-making as a primary/only effect has also become somewhat frowned upon here lately. It's been done so many times in so many different ways that it's difficult to come up with a unique way of handling it.
Honestly, I wouldn't bother writing this.
Giving bearhugs to the unsuspecting since 1872.