BZFlag for Mac OS X

: This is a 3D multi-player tank battle game that allows users to play against each other in a networked environment. There are five teams: red, green, blue, purple and rogue (rogue tanks are black). Destroying a player on another team scores a win, while being destroyed or destroying a teammate scores a loss. Rogues have no teammates (not even other rogues), so they cannot shoot teammates and they do not have a team score. There are two main styles of play: capture-the-Flag and free-for-all. In capture-the-flag, each team (except rogues) has a team base and each team with at least one player has a team flag. The object is to capture an enemy team`s flag by bringing it to your team`s base. This destroys every player on the captured team, subtracts one from that team`s score, and adds one to your team`s score. In free-for-all, there are no team flags or team bases. The object is simply to get as high a score as possible.