TORCS - TORCS, The Open Racing Car Simulator is a highly portable multi platform car racing simulation.
SuperTuxKart - 3D arcade-style MK-like kart racing game
TrackMania - The most popular online PC racing game.
Asphalt - Asphalt is a series of racing video games that was developed and published by Gameloft.
Speed Dreams - Speed Dreams is a 3d cross-platform, open source motorsport simulation and racing game.
Real Racing - Experience all of the excitement, competition and glory of championship racing.