The AI War 2 backerkit extended funding is ongoing! We're working on that fifth stretch goal!
Related question: the DRM free copy doesn't seem to have a key associated with it. You get this when you launch it.As I already own the game, I'd hoped to give the DRM free copy to a friend with the extra steam key. He's probably fine on the steam end (hasn't reported back) but I was worried about this part.