OpenRCT2 is an open-source re-implementation of RollerCoaster Tycoon 2 (RCT2). The gameplay revolves around building and maintaining an amusement park containing attractions, shops and facilities. The player must try to make a profit and maintain a good park reputation whilst keeping the guests happy. OpenRCT2 allows for both scenario and sandbox play. Scenarios require the player to complete a certain objective in a set time limit whilst sandbox allows the player to build a more flexible park with optionally no restrictions or finance.

OpenRCT2 features many changes compared to the original RollerCoaster Tycoon 2 game. A few of them are listed here.

• User Interface theming.
• Fast-forwarding gameplay.
• Multiplayer support.
• Multilingual. Improved translations.
• OpenGL hardware rendering.
• Various fixes and improvements for bugs in the original game.
• Native support for Linux and macOS.
• Added hacks and cheats.
• Auto-saving and giant screenshots.

Original RollerCoaster Tycoon 2 or RollerCoaster Tycoon Classic game files are required in order to play OpenRCT2.