Unvanquished

Unvanquished is a free and open-source video game. It is a multiplayer first-person shooter and real-time strategy game where Humans and Aliens fight for domination.

Players fight in an alien or human team with respective melee and conventional ballistic weaponry. The aim of the game is to destroy the enemy team and the structures that keep them alive, as well as ensure one's own team's bases and expansions are maintained. Players earn resources for themselves and their team via aggression.