Called Ex Machina in Europe, the most succinct way to describe Hard Truck Apocalypse would probably be as "Freelancer, only with armored trucks in a nuclear wasteland instead of in space." The preview build I've been dabbling in certainly shares a great deal of similarities in terms of play mechanics to Digital Anvil's sprawling galactic action gem. The story, as best as I've been able to glean so far, involves a mutant (I think everyone is a mutant in this game) who's been down on his (its?) luck for awhile.