From the post:
This Quickstart gives you an introduction to the 2d20 system, a short adventure, 4 pre-generated characters and an overview of the Infinity universe.
The Infinity universe was launched by Corvus Belli as a hugely-popular tabletop skirmish game in which sci-fi themed miniatures simulated futuristic battles across the alien battlefronts of Paradiso and the internecine conflicts of the Human Sphere. Before there was a skirmish game, though, there was an RPG: Infinity started life as a homemade RPG setting for the early roleplaying adventures of Corvus Belli founders Alberto, Carlos, Fernando, and Gutier. We've been playtesting the Infinity RPG with hundreds of people for the last 9 months, working hard to recapture the excitement of those first sessions and ensure that the feel of the Infinity universe will be captured in your own campaign!