Ooh! Planning on making something cool? That's great!
The Driftmoon engine is definitely available for those who would like to make a standalone game, and even sell it. Just mail me (firstname.lastname@example.org) and let's have a look at your needs. The easiest way is to make a Driftmoon mod, change the game's name, and start selling! And we're also eager to promote whatever you make on our website!