Incredible Rollercoaster Tycoon park.

I played this game a lot when it came out in 1999, it's a terrific entry in the 'God Game' category. I played a lot, but I never could have built something like this; a multi layered monstrosity with what looks like four gargantuan coasters squeezed into it.

I mean, it was hard enough just trying to lay down the ride queues in a competent manner, let alone trying to weave coasters amongst each other in such a small space like that. It would have driven me insane!

Kudos.