Attention indie devs and modders! John Carmack has tweeted to say that id are releasing the full source Doom 3 source code to anyone who fancies downloading it and having a poke. The news, spotted on RPS , puts id Tech 4 in the hands of game makers looking for some free tech to play with. “Doom 3 source is packaged and tested, we are waiting on final lawyer clearance for release,” Tweeted Carmack. No news on how long exactly that will take. To all the budding devs who will be downloading the new code, please, for the love of our eyes, use more lights than id did in Doom 3.