just finished this game
Zeno Clash
and what a strange journey it was. this probably has some of the most unusual and unique creatures and environments that I've ever seen in a game. I've heard it be called "Peyote Clash" and I think that fits it well.
To quote someone else too, "If Frank Zappa was a game designer, this is what he'd make".
the combat/gameplay is what really sells it though. at first I thought I wouldn't like it cause it was a 1st person melee and I wasn't used to all the mechanics, but once you get the mechanics down it's pretty damn satisfying to bust some skulls in. that and it's really challenging, even in the beginning.
but yeah, I would recommend it if you're looking for something really different and kind of out there.