The OpenRCT2 project recreates the classic hit RollerCoaster Tycoon 2 into open-source code, expanding the game with new features, fixing original bugs and raising game limits. Several notable improvements over RCT2 are: Multiplayer co-op, cheat menu, language support.
Development started on April 2nd 2014 by Ted 'IntelOrca' John. Thanks to numerous contributions from others the OpenRCT2 project is making great progress.
The easiest way to play is to grab a download right from the Downloads-page. It's also possible to compile from source-code.