And what a set of tools it is.
If you were hoping for a friendly system full of handy tips and giant buttons, sorry. These are basically the same tools id used to build the game themselves, and carry warnings like the fact this stuff is "not be interpreted as consumer-ready", and that it's "only for the technically sophisticated and adventurous!"
Only serious modders need apply, but then, the payoffs might be worth the toil; RAGE had a ton of potential, especially in terms of its game world, that was capped only by some repetitive action and a pretty terrible ending.
In the hands of someone other than id, with the power of serious tools, who knows...we might get a game built using RAGE's bones, but better. Or not. But hey, it's a nice day outside, given the talents of modders I'm going to be optimistic!
The tools - which are 35GB in size - are available on Steam, with an intro guide below.
RAGE Tool Kit Available Today on Steam [Bethesda]