Strategy Informer  

Four new titles have appeared on the Xbox 360's Games on Demand service for the US region (other regions may or may not also get the same deal).

The games include:

* Vanquish ($40)
* Colin McRae's DiRT 2 ($30)
* Velvet Assassin ($20)
* Operation Flashpoint 2: Dragon Rising ($20)

Of the games, DiRT 2 is the clear winner, though at $30, it's a bit pricy compared to retail store offerings. Actually, all of the games seem to cost more than their retail counterparts.

Source: Joystiq

Related games: Velvet Assassin (Xbox360), Colin McRae: DiRT 2 (Xbox360), Vanquish (Xbox360), Operation Flashpoint 2: Dragon Rising (Xbox360)