Every once in a while I like to play some older games I haven't played in a while. With PC games, this can be a little iffy sometimes, what with compatibility issues and everything.
That said, I think Maxis wins the award for "Most Crashy Development Studio" of anything I've ever gone back to. Recently attempted to play SPORE and SimCity 4, which will run for maybe about 30 minutes to an hour before they crash. This is in contrast to most compatibility issues I've had, where the problem presents itself almost immediately, or the game just flat out doesn't run. And, to be honest, I can't exactly say I remember either of those games running very well back when I was running XP - I mean, they'd run a little longer before crashing, but you know what? Of those that are recent enough to run without an emulator/virtual machine, I can't think of any other games in my library - any age - that have crashing issues *at all*, with two exceptions - one crashes upon entering gameplay if nothing is plugged into the microphone jack (weird compatibility issue with newer versions of Windows, apparently), and the other is heavily modded.