I've got the Rollercoaster Tycoon 3 Platinum that includes the water park and zoo tycoon packs. It's a really fun game, I've become quite addicted to it. However, then dang thing keeps kicking me out! Very frustrating, but I'm learning to save after each addition. I even bought more RAM and cleaned off my computer hoping to eliminate this problem, but no such luck. Forums have had the problem come up as well with no solution in sight. Hopefully the developers will tackle this problem and offer a patch because I really like the game. If they don't, I guess I'll go buy Thrillville.