When playing older games, always run as "Administrator" when using Windows 7. Crashed the first time I tried to play, made the change, and haven't had any issues since. I played this game as a kid and was soooo happy to see that you guys had it on here. I was also lucky enough to find the original Dungeon Keeper with disc and instruction booklet at a book and game exchange store. I nearly had a heart attack I was so excited. I would love for everyone to try out and play this game and get it some well-deserved attention in hopes that some creative game designers will want make an updated version. It's tons of devilish fun. Try it out. It's so worth it.