Badspot is a total bro for putting Renderman in. :P
The haunted game concept, a staple for many a stuffty creepy pasta has always intrigued me.
Perhaps to create a game that somehow uses the person's own computer slightly, like fake crashing to the desktop but with a mysterious folder added that when opened does some creepy stuff or something then returns you to the game or something I dunno, is something I would enjoy partaking in.