What? Magicka hasn't been brought up yet?
"Stay a while and listen, and I will tell you a story. A story of Dungeons and Dragons, of Orcs and Goblins, of Ghouls and Ghosts, of Kings and Quests, but most importantly -- of Wizards and Vamp -- Well... A story of Wizards." The opening line to the game as told by Vlad; who is not a vampire.
Hopefully the above line will give you an idea of what Magicka is about. It is a satire of the RPG genre as well as referential humor to gaming as well as a few pop culture references. But, it also has a great magic system under all the humor. Great game.
I would suggest getting a few friends to play it with you. It is far more fun with a few friends in co-op, which I use the term co-op very loosely. Friendly fire is on and remember, do not cross the streams. That would be bad. Yet, very funny. Death isn't a major problem and can come from both your allies and enemies very quickly.
You can find it on Steam and for now it is a PC only title. It also has a paid DLC that takes place in Vietnam. Yes, wizards with guns in the Vietnam War.