OpenRCT2 is the open-source adaption of the classic hit RollerCoaster Tycoon 2. Including online multiplayer, fast-forwarding and numerous bug fixes.
"OpenRCT2 is an open-source re-implementation of RollerCoaster Tycoon 2 (RCT2), expanding the game with new features, fixing bugs and raising game limits."
A project I never see great brought up enough so here's some love to a great classic game that's been revitalized by fans.
I can't let myself play OpenTTD anymore. It runs too big a risk of annihilating my sleep schedule. There's always some city that could really use some bus route optimization.