I really like this game and bought it as soon as it came out but it has so many problems. In the original game while playing My Pet Dungeon you could take heroes out of the box and place them straight in the prison, in this version you have to fight them. I was playing this game on my Vista PC (which was designed for gaming) and as soon as a fight breaks out the game stops working. The game works better on my 7 Laptop (not designed for gaming) but still has these issues after playing for a while or when there is too much action on the screen. It can't be the game because Rollercoaster Tycoon works perfectly fine on both machines. This is one of my all time top favourite games but is close to unplayable, it needs fixing. I would suggest waiting until the game gets patched before buying it. Trust me if that happens it would have been worth the wait. Once this is no-problem playable game it will be a 5 star game.