Yes, I've played it. Keyword is played. The key factor in any multiplayer game is the community. I've found GB to be filled with some of the most moronic, hostile and all around immature people to ever walk the earth. It's practically inevitable, since the game is completely free. I'll give an example of what you'd commonly find on the boards or chatrooms.

MrX: GET FREE GUNBOUND HAX RIGHT HERE http://www.geocities.com/randomname.....
5 minutes later
MrY: I went to ur site and it asked for my name and pass. I gave it and now my acct is hacked! Asshole!

things like this are never taken care of by the gunbound staff. their ''who cares'' attitude has created a very hostile environment among players.

other than the players, the game lacks much mechanics to it. You are presented with several ''mobiles'' or tanks, that can fire 3 different shots. There are special items you can use, but it really leaves you wanting more. And equipment is yet another reason for a headache. Spending hours upon hours earning money becomes very tiresome trying to buy some equipment that will give you a practically useless bonus, at which that point you'll probably have enough experience to be just as good without it.

The learning curve is rather easy, though. Nothing too complicated about hold space bar....release to shoot. But be prepared to be seriously owned by vets if you're new.

If given a choice, I'd choose Worms World Party over Gunbound anyday,