You have a gang in a persistent online world. You manage their training, vehicles and travelling orders from the Darkwind website, one in-game month passing for each real-world week. Then, whenever you have some (real world) time to spare you fire up the game on your PC and take control of your gang in 3D, turn-based, vehicular contests. That might mean arena battles, races or championships of some kind, or it might mean leaving the relative safety of the towns to battle AI or other players in the wasteland.
Large variety of weapons
Brutality of it is compelling
Rickety and bolted-together
Losing gang members permanently sucks
Slow pace won't be for everyone