User summary:
The WarpSpawn Big Book O'Games contains 294 games of all types, extracted from the rules forum of a defunct website. Individual games range from little more than a notional premise through fully developed systems.
The book includes several entries categorized as roleplaying games (though all but one of the entries are very incomplete), including:
Beautiful Girls With Swords (several character generation random tables)
Out Worlds RPG (an idea for a sci fi game)
Shared Universes (a method of ranking players - in effect, gamifying game playing efforts)
Superhero Slugfest RPG Expansion Rules (ideas and tables to convert Superhero Slugfest into an RPG-like game)
Warp Play (various very concise concepts for streamlined combat campaigns intended for use with d20 System); Dwarfland, Lunatech, Mutant Trolls, and Skyie