Originally Posted by Bax53
Beyond Good and Evil
Deus Ex Invisible War
All 3 are 2003 games.
Katamari Damacy was one of the best games of 2004. However, I don't think it's really "under the radar", since it's actually pretty popular, especially among the gaming press and in the gaming community. Heck, it was even nominated for a couple of Spike awards. But the term "out of nowhere" certainly applies. What a great game it is.
My vote is for Psi-Ops. Yes, it may have sold more copies the Katamri Damacy but I consider it "under the radar" since it didn't get a lot of press or rave reviews. I think it was an innovative, fun game that opened up all sorts of new gameplay dynamics. It's hard to do much new in the over-saturated third-person action genre, and on that front Psi-Ops really succeeds.
Champions of Norrath was a very good-looking dungeon crawl with a few glitches. Still for an action-RPG it was fun and had the ability to go online which made it unique in the genre (for console games)
I'm still not sure if Taiko Drum Master is a game, but I think it's pretty fun at parties. Ditto Eyetoy : Antigrav. When that comes out without a camera included, I'll pick that one up as well.
And if 2003 games that hit the bargain bin in early 2004 count, I'll add Sphinx And The Cursed Mummy, which outside of the baffeling decision not to include voice dialog, was a clever, beautiful adventure game.