This is an extremely fun game for anyone who likes co-op and stealth games. The horror aspect of the game is very mild and comedic, and I would say that it's very well-suited for people who normally don't like horror games (like me, for example). Honestly, the game feels a lot more comedic than horrific. The game is equally fun with 2 players as it is with lots of people... the strategies may change, but the fun level stays exactly the same! :-D The game is both very easy to learn, and also very deep and fun to master. The thing that gives it lots of replay value, is being able to play with the same person again and again, so that you guys can try new strategies and attempt to beat your previous record. Oh, and by the way, the game is a roguelike game, meaning that if everyone dies, then the campaign is over and you start again from zero. So only pick this game up if you actively enjoy that sort of thing :-)
