>Wild West story set in 18th century Russia/Ruthenia, with cossacks in the place of cowboys.
>A very political game set in the final days of Constantinople in 1476, with all the medieval conspiracies in Europe and the Middle East (Templars, Hospitallers, Hashashin, alchemists, etc) trying to out-JUST AS PLANNED EACH OTHER and win the ultimate prize: the city itself.
>A post-apocalyptic in wich the sun was eaten away by interdimensional invaders. Earth exists in perpetual night, and only manmade sources of light actually work, but humans learned to control light as a weapon and new, weird bioluminescent life is developing.
>Medieval setting. The royal houses descend from mythical heroes that extincted the Dragons and bathed in their blood. Being born with enough noble blood gives you cool powers like great strenght or breathing fire, as well as the hability to cast magic, that works more like a martial art. Too much noble blood turns you into an abomination. Political marriages have never been so fun. I actually got a lot of stuff written for this setting.
>JoJo's Bizarre Castlevania. The Belmonts instead of the Joestars, Hamon instead of the whip, Dracula instead of Dio.
>A Samurai Champloo campaign set in modern US West Coast. Gangsta ronins, katanas and all.
>Treasure Planet, but instead of hunting treasure the players are crew in a merchant vessel headed to an alien planet. The planet had primitive technology until humans made contact and started trading modern weapons and tech for local products. That destroyed the planet's century-long social order and begun a warlord era.
>Ligh-hearted adventure using Maid RPG, but with incredibly japanese Salarymen, and all the Stress Explosions result in comitting sudoku.
>Gritty Medieval Spec Ops. The players are in a tacticool crack team charged with assassination, espionage and sabotage missions. It plays like Metal Gear Solid or Splinter Cell, not the average assassins guild missions.