X-Moto is a free and open source 2D motocross platform game developed for Linux, FreeBSD, Mac OS X and Microsoft Windows, where physics play an all important role in the gameplay.

[3] The game was developed completely 2D, but utilizing 3D hardware acceleration (OpenGL) for faster rendering.

An optional non-OpenGL ultra low requirements vector wireframe render mode is available that should run on any legacy platform.

Moving objects, variable gravity and other features can be provided by scripting the levels using the Lua programming language.

As of version 0.5.0, integration with the Chipmunk physics engine enables levels with multi-body dynamics.