Pure simulator
- rFactor (tons of free mods ranging from F1 to tintop and tracks. Game engine used by F1 teams like Red Bull, Petronas Mercedes and McLaren for their own simulator. If you are lucky you can find real life drivers such as Jaques Villeneuve racing online)


- GTR2 (based upon rFactor's game engine)
- Race (evolution of GTR2)
- C.A.R.S (From Slightly Mad, the developers of SHIFT, a PC exclusive simulator for enthutiast. Note: they were former employees of SimBin, the developer for GTR2 and RACE)


- iRacing (Subscription based, worldwide racing league. Regarded as one of the most competitive simulation racing series in the world. Some real life drivers also used this to practice and hone their skills. Cars have a near accurate physics and tracks are laser scanned)


- Live for Speed (One man team simulator. Quite good, especially for drifting. But updates are infrequent)


- Game Stock Car (Brazillian Stock Car racing by Reiza Studios. Based upon rFactor game engine. Notable racers includes Felipe Massa and Rubens Barichello)


Semi Sim
Codemaster's racing title - (Dirt series, F1 series, GRID). If you want fun without needing to think about car control, these suits you. Lots of grips, insane and unlogical top speed, but still need to have control to make the corner.

Need for Speed Shift 1 & 2 - Semi Sim due to console development. Still much more challenging than any of the Codemaster's title. Complaints about the physics leads to the development of C.A.R.S

Arcade
- Need for speed
- Flatout 2
- Burnout Paradise
- Test Drive

This post has been edited by DrBlueBox: Nov 30 2011, 11:09 PM