RollerCoaster Tycoon (or RCT) is a series of computer games where the user can make their own theme park. Each game in the series allows players to construct their own theme parks in an objective-based level. Players can also build their own roller coasters.

The first game was made by three people: designer and programmer Chris Sawyer, artist Simon Foster and composer Alistar Brimble. It was published by Hasbro Interactive.

The game was very popular. It was released for the PC.