Just checked out Oilrush forum, and I saw that the game is on desura!
This is a very good update changes by the development team.
I quickly redeem my activation key on desura.
and now, I have my first owned game on Desura ! :)
I would like to recommend to everyone who played game like command and conquer, waterworld, dota all star maybe...or any tower defence game, this is revolution game, with an awesome graphic by unigine devs.. :)