Anyone who’s ever played multiplayer online games enjoys them and this is no exception when it comes it iPhone and/or iPod Touch (and soon to be iPad) gaming. The following 5 free games are all internet-enabled multiplayer games that any serious iPhone gamer will enjoy.

Words With Friends Free is in a league of its own. As we’ve said previously, this is easily the absolute best word game available for the iPhone today and the online play earns it the top spot on this list. Don’t let the title deceive you, this should be installed even if you don’t have friends.

Chess With Friends Free comes from the same people who brought us Words With Friends, but instead of a Scrabble-esque game, you get to play chess with friends, random opponents, or I suppose even your enemies. If you’re looking to learn this classic strategy game or just practice your chess skills, this is the app to do it with.

Mancala FS5 Free is a hugely addictive version of Mancala for your iPhone. This classic game of who can get the most beads is hugely addictive and the online play is very competitive. If you liked playing this game as a kid, you’ll loving having it on your phone where you can play against AIM buddies, the computer, or just random players.

Live Poker is pretty self explanatory. Play poker, live, against other people. This ties in with the hugely popular version for Facebook, allowing you to play against your friends. It gives you 1000 free chips a day to play with, so don’t worry about going broke. The interface is clean, easy to use, and makes online free poker a fun time-waster.

Cube is one of the first and arguably the best first person shooter available today for the iPhone platform. It can be both single- or multiplayer and provides fast, fun gameplay. The controls take a bit to get accustomed to, but once you’ve got them down you’ll be fragging with the best of them.