rFactor

rFactor is a racing simulation game that focuses on user generated content. The game allows the player to race in both open wheel and touring cars. The player can race online against real opponents or against computer controlled cars in an offline campaign. In the offline campaign you have to deserve credits to gain access to new cars, upgrades and tracks. You can freely place your camera to any position you wish both during races or when watching replays. The game focuses on realism, with advanced tyre modeling, aerodynamics calculations and a complex physics engine.

The game features no licenses so all the standard cars and tracks are fictional. But the game is very friendly for modding and because of that has a large community that generates content. The game allows for mods that add new cars, skins, entire new race seasons with new tracks and schedules, or new rule sets to simulate other types of vehicles. Many already existing mods let you drive in well known racing cars from various brands on tracks from all around the world.