Dream Games has extended their registration date for their Build a game in a year and increased the prize money to $10,000. They have also explictly stated that TorqueX based games will be allowed. Last date for registration is April 1st 2007
I almost landed a 25-article contract for high-performance programming for which I was going to develop a game. I had the games all designed, too. Oh well. None of us can afford a significant amount of programming for a purely speculative reward, but if you have the intention of developing a game anyway, what harm would it be registering for the contest?