SuperTuxKart Portable 0.9 is a Free 3d kart racing game. It's more about being fun than being realistic. You can play with up to 4 friends on one PC, racing against each other or just try to beat the computer. It's packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Suite. It supports upgrades by installing right over an existing copy, preserving all settings. And it's open source and completely free.

See the great lighthouse or drive through the sand and visit the pyramids. Race underground or in space, watching the stars passing by. Have some rest under the palms on the beach (watching the other karts overtaking you ). But don't eat the bananas! Watch for bowling balls, plungers, bubble gum and cakes thrown by opponents.

You can do a single race against other karts, compete in one of several Grand Prix, try to beat the high score in time trials on your own, play battle mode against your friends, and more!

Features
* Over 20 tracks and battle arenas
* Split-screen multiplayer support
* Many game modes
o Grand Prix
o Single Race
o Time Trial
o Follow-the-leader
o 3-Strikes Battles
* Funny characters
* Runs on GNU/Linux, Windows

APRIL 21, 2015. SuperTuxKart 0.9
It has been a rather long time since our last official release - nearly one and a half year. But we have not been idle during this, actually more the opposite. The 0.9 release contains some significant changes - especially (though not only) visual changes.
Highlights of the 0.9 release:
* Fully shader-based rendering engine
* New tracks Cocoa Temple and Gran Paradiso
* Graphical improvements to many other tracks
* New karts Amanda, Gavroche, Sara (as wizard and racer)
* Improved tux, adiumy, Suzanne and Xue.
* Online login which allows to:
- connect with friends and see when they are playing
- vote for addons
- collect online achievements
* Different kart physics
* In-game Grand Prix editor
* Random Grand Prix generation
* Achievement system
But as can be expected, the improved features will increase the minimum hardware specs necessary to run SuperTuxKart. We have spent a lot of time trying to iron out bugs (not only our own, but especially bugs in various OpenGL drivers), and to support lower end hardware. The graphics hardware must at least support OpenGL 3.1 (which is 6 years old). Based on our somewhat limited testing the following graphics adapters should be fast enough at low graphics settings (go into settings, video to increase or decrease the graphical details):
- ATI/AMD Radeon HD 3650
- Intel HD 3000
- NVIDIA GeForce 8600
We also recommend your graphics adapter to have at least 1 GB VRAM available when playing. Note that these are estimates and weaker hardware may be able to run the game, but perhaps not at playable framerates. You should also have at least 600MB free hard drive space, 1GB free memory, and a 1.2 GHz processor.