Arena is a game-mode in Tribes: Ascend. It consists of two teams of 5 who are limited to 25 respawns. After the team's respawns are expended players are benched when they die. The last team standing wins the round. Arena games usually take place on small maps which are often dangerous in their own right. For example the Lava Arena takes place on a stone structure above a lava pit which will kill players who fall in. Currently a player must have a rank of at least 8 (Squad Leader) to play in an Arena match.
There are currently 4 Arena maps: