Swarm is a 4 player Last one Standing map. The objective of the game is to protect the AI player in the center of the map until it is able to launch a completed starship. Each player is given a number of guard posts at the beginning (low resources gives 1, medium gives 2, easy gives 3). Ore is given to the players end of each round. The players also have a base at the top of the screen where they can purchase new units and structures. Ore is stored both in ore storages and in buffers in code; this means that you will not stop receiving ore when your storages are full.

Swarm has a reputation for being broken. Things crash... a lot. This has almost become part of swarm, don't expect any real attempts to fix it any time soon.