X-Moto is a free and open source 2D motocross platform game dev... - dofaq.co
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X-Moto is a free and open source 2D motocross platform game dev...

wikipedia - 29 Jul 2015
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. The basic gameplay clones that of Elasto Mania, but the simulated physics are subtly different. The project was started in 2005.

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