Blood Bowl is the game of fantasy football. No, not the geeky game of picking real NFL players and using their stats to determine games between fantasy team. FANTASY football. Dwarves, orces, elves, undead, trolls, choas mutants, the works.
The game is a hybrid board game/miniatures game as in it uses miniatures on a board. Game play is kind of a mix of American football and rugby. You try to score touchdowns, kills opposing players, foul, bribe the ref and so forth. It's general mayhem.
There have been 3 editions of Blood Bowl so far, plus the Living Rulebook, wich is currently on 5.0.
Blood Bowl can be played in one off games or in league mode in which teams can can permanent injuries, new skills, stat modifiers, new players bought, money earned and so forth.