Like my lists for D&D-esque games and 2d6 games, here's the final piece: a list of d100 games.
I decided not to be strict with my criteria here; the list includes everything from the BRP family (and its d20-based derivatives, such as Pendragon), various Warhammer games, and even Rolemaster and its ilk. It's not comprehensive at this point, but I'll be slowly expanding the list with both old and new games.