I love Cliffski. I’ve bought a lot of his stuff. But I didn’t buy Gratuitous Space Battles and I think I’ve mentioned why before – after playing the demo I didn’t think there was enough interactivity in the game section of the game.
Cliffski’s fixed that with this game. Gratuitous Tank Battles is a sort of real-time tower attack/tower defense kind of game with some interesting mechanics. It also still has the “design your own tanks” and “design your own levels” tools that GSB did. Definitely check out the video.