
Go give a try to Scorched Earth 3D.
Tis basically an artillery/economy between rounds game, based on an old 2D game (prolly one of the older games i ever played on a PC).
This time, the 3D version kept a very enjoyable gameplay (opposed to disappointings 3Disations of worms or lemmings).
Tis quite funny how this game has common features with A Tractor : Its main developper probably drink whisky (did not ask him, but he's from scotland

Interesting points to notice : Free, opensource, run on many different OSes.
Perhaps even have some good ideas to steal there for A Tractor... (I love the realtime dynamic landscape thing !)
Enuf advertising - i'll cross advertise for a Tractor in their forums to stay fair
