Play Vampire: The Masquerade

Percentile rolls, 1920s investigators and a sanity score that only goes down; the oldest RPG still in print after D&D.

Engage in the classic tabletop role-playing game Dungeon & Dragons with friends or a local group

Character creation runs a career term by term and can kill you before play starts; the first science-fiction roleplaying game.

The grim Old World from the bottom up: characters start as ratcatchers and boatmen, and the critical tables take limbs off.

The Generic Universal RolePlaying System: one point-buy rulebook built to run any setting, from Imperial Rome to interstellar war.

Magic returned to a 2050s corporate world, so elves and orks now run cyberware-assisted espionage against the megacorps.

Paizo's continuation of D&D's third edition after Wizards moved on, with the Golarion setting and its book-length adventure paths.

A crew of thieves in a city lit by demon blood, where the heist is planned backwards through flashbacks instead of at the table.