You have a selection of 12 different playable characters, 9 maps and 9 weapons to choose from, alongside deployable turrets. The current build has 8 maps to play, each different in theme. The game uses a wave system, meaning you have to survive waves to progress. Each new wave more monsters appear, ready to kill you. The mod is best played in multiplayer co-op, although singleplayer is also possible.
This mod is recommended to be played with Zandronum.