It isn't exactly an RPG, but it's close and it is a lot of fun -- Blood Bowl!
If anyone wants to check out my team blog for Wyrmwood, here it is!
Wyrmwood is an Underworld team, which is a mix of goblins and skaven (think ratmen with attitude) who are addicted to warpstone and prone to mutation. In Wyrmwood's case, they get their warpstone by drinking a toxic beverage called toadbrew, which is basically absinthe that has been so infused with warpstone that it glows green.
P.S. I've also put together an atmospheric bit of audiovisual portaying a blood bowl pub here.
Enjoy!