Xfire is the instant messenger for gamers. See when your friends are playing online games; See what game they are playing; see where they are playing; and join their game with just one click. Plus, unlike existing Instant Messengers, this one lets you receive IMs without disrupting your game.
X-fire is simple, functional, while not being bloated. Most of the features in Xfire would be used by the average gamer at some point or another.
Download: Xfire 1.105