You know what would be awesome? Eternal Darkness 2 (or some other survival horror game) with two player coop - and insanity effects. Coop makes games less scary? Not necessarily. I'd say they can be even more disturbing and scary. Imagine both players entering a room, but it looks entirely different for both players. One player sees a dark, moody place, left many years ago, whereas the other sees a nice, clean and cozy place. You stand right next to your friend in the game, but you see completely different things, and can't comprehend why your partner reacts the way he does. Or imagine walking down a corridor and your friend suddenly turns around and seemingly starts to attack you - except he doesn't. The AI takes over, and the "attacking" player doesn't even notice. Or imagine one player suddenly seeing a ton of monsters without the other player noticing. Because they're not really there? Or maybe they are there, but one of the players simply can't see them? Or imagine fleeing from a threat, running down a corridor, turning a corner, but for one player, there's no door at the end - it's a dead end. Or is it?
