[RPG] 4 Free RPGs

The Pool is about 3 pages long, lots of fun. Damn simple. Quite a bit of player empowerment in the rules, which is really neat.

Fate is 90 pages long. It's comprehensive, well presented rules system has won a heck of a lot of awards. Fate is a FUDGE variant (so you need special FUDGE dice)

Pace - a 19 page diceless RPG created for the 24 Hour RPG contest and since revised. Character creation in under a minute. The rules have a nice writing style and good graphic design. Pretty well reviewed.

The Shadow of Yesterday is my pick of the bunch. TSoY is great; a neat conflict system and a really crowd-pleasing concept called the Gift of Dice which effortlessly creates teamwork. It’s a fantasy game, but our group adapted it to modern times with no trouble.