On the moon of Epi, a mining-expedition becomes isolated by a raging cosmic storm. Supplies are good and morale is high. But on day 2 of isolation their individual computer systems flash warnings that the coalition-homeworlds may be at war and that their rival computer is probably blocking their signal. Immediately both teams descend into paranoia and assemble into panicky armed units intent on ensuring only one computer system survives by any means.
The Assassins - Sterner Regnix must be killed! One player controls the assassins, and the other player controls Sterner and his bodyguards.
Moonbase Assault - One player must attack the moonbase and destroy the computers. The other player must defend the moonbase until the turns run out.
The Stealth Assassins - Sterner Regnix must be killed! One player controls the assassins, and the other player controls Sterner and his bodyguards. Very few explosive weapons are allowed.
Outhouses - Sterner Regnix must be killed! One player controls the assassins, and the other player controls Sterner and his bodyguards. This mission uses a map containing lots of small buildings.
Assassinate - Campaign Version - Sterner Regnix must be killed! One player controls the assassins, and the other player controls Sterner and his bodyguards.
3-Player The Assassins - Sterner Regnix must be killed! Two players each control a squad of the assassins and must race to be the first to kill him. The other player controls Sterner and his bodyguards.
Hideout - Sterner Regnix and his whole gang must be killed!
The Assassins - New House - Sterner Regnix must be killed! One player controls the assassins, and the other player controls Sterner and his bodyguards.
Moonbase Clash - One player must attack the moonbase and destroy the computers. The other player must defend the moonbase until the turns run out. This is the same as the standard Moonbase mission except walls can be destroyed.
Moonbase Assault 2v2 - Two players must attack the moonbase and destroy the computers. The other two players must defend the moonbase until the turns run out.
Moonbase Assault 2 - Each player is in control of a moonbase, and they must use their squad to defend it, but also destroy the computers in their opponent's moonbase.
Moonbase Assault: Undercover Agent - One player must attack the moonbase and destroy the computers; the other player must defend the moonbase until the turns run out. However, two attackers are actually an undercover agent for the defenders, and can be activated at any time.
Superhuman: Moonbase Assault - One player must attack the moonbase and destroy the computers with their small squad of superhumans. The other player must defend the moonbase until the turns run out.
New Moonbase - One player must attack the moonbase and destroy the computers. The other player must defend the moonbase until the turns run out.
Rescue from the Mines - 3 Hostages must be rescued by one player from the mine complex. They must remember to take some explosives with them to break open the prison walls. The other player must prevent them escaping.
Denunciation - Two sides must assassinate each other's ambassador who is somewhere in the UN village. Each player controls a squad and one ambassador.
Denunciation 2v2 - Two sides, each controlled by two players, must assassinate an opponent's ambassador who is somewhere in the UN village. Each player controls a squad and one ambassador.
The Exterminators - Sterner Regnix must be killed! One player controls the assassins, and the other player controls Sterner and his bodyguards.
Escort - Sterner Regnix must make it to his escape pod on the other side of the complex. One player controls Sterner and his gang, the other player controls the assassins who must prevent him from getting to the other side.
Escort 2v2 - Sterner Regnix must make it to his escape pod on the other side of the complex. One player controls Sterner, another controls his bodyguards, and the other two players each control an assassin squad.
The Angels of Death - Sterner Regnix must make it to his escape pod on the other side of the complex whilst avoiding the Angels of Death
A Tale of Two Moonbases - Each player is in control of a moonbase, and they must use their squad to defend it, but also destroy the computer in the middle of their opponent's moonbase.
A Tale of Two Moonbases - Campaign Version - Each player is in control of a moonbase, and they must use their squad to defend it, but also destroy the computer in the middle of their opponent's moonbase.
A Tale of Two Bases 2v2 - Each side is in control of a moonbase, and they must use their squads to defend it, but also destroy the computer in the middle of their opponent's moonbase. Each side is comprised of two squads, each controlled by a single player.
Team Fortress - Each player is in control of a moonbase, and they must use their squad to defend it, but also destroy the computer in the middle of their opponent's moonbase.
Defend the Base - A small moonbase on a deserted moon is under attack. One player must attack the base and destroy the computer. The other player must defend the base until the end.
Superhuman: Defend the Base - One player must attack the base and destroy the computer with their small squad of Superhumans. The other player must defend the base.
Breakout - A group of prisoners must escape from the complex. There are 4 escape points in the four corners of the map which need covering by the guards.
Laboratory Attack - The base computers and scientists must be protected. One player controls an attack squad who must kill enough computers and scientists, and the other player controls the defenders and the scientists.
Laboratory Attack 2v2 - The base computers and scientists must be protected. Two players control an attack squad who must kill enough computers and scientists, and the other two players controls the defenders and the scientists.
Meltdown - Highly explosive computers must be defended or destroyed. One player must destroy the computers and the other player must defend them. Warning: when the computers explode, they will destroy everything close by!
Meltdown 4-Player - Highly explosive computers must be defended or destroyed. Two players must destroy the computers and the other two players must defend them. Warning: when the computers explode, they will destroy everything close by!
Prison Mutiny - A small group of well-armed prisoners must escape from the prison complex.
Prison Riot - A large group of poorly-armed prisoners must escape from the prison complex.
The Assylum - Groups of poorly-armed prisoners must escape. 3 players each control a group of prisoners, and one player controls the prison guards. Can the prisoners work together or will they kill each other before they get a chance to escape?
Sniper's Paradise - Two teams battle it out to the death across a wide and barren landscape.
Capture the F.L.A.G. - The incredibly valuable F.L.A.G. is located in the middle of the moonbase. Two teams battle it out in close quarters to be the first to capture it and escape.
Capture the F.L.A.G. 4-Player - The incredibly valuable F.L.A.G. is located in the middle of the moonbase. Four teams battle it out to be the first to capture it and escape.
Capture the F.L.A.G. 4-Player CC-Only - The incredibly valuable F.L.A.G. is located in the middle of the moonbase. Four teams battle it out in close quarters to be the first to capture it and escape.
The Stardrive - The attackers must get the Stardrive back to the exit.
F.L.A.G. Heist - Two teams battle it out to escape with the unobtainium by taking it to the opposite side of the map.
F.L.A.G. Heist 4-Player - Two teams battle it out to escape with the FLAG by taking it to the opposite side of the map. However, the FLAG is encased in a solid room, so explosives will be required.
Battle for Sigma 7 - Two equal sides must battle it out across a sparse landscape.
The Big Push - Two sides must battle it out. One side starts at a disadvantage as they are stuck in the open with no cover.
Battle Royale - Four teams battle it out to the death in a randomly generated map.
The Flood - Four teams battle it out while a flood slowly engulfs the map.
Moonrise - Side 1 must kill side 2, side 2 must kill side 3, and side 3 must kill side 1.
The Cyber Hordes - The moonbase must be defended from the droids.
The Alien Hordes - The moonbase must be defended by the human colonists from a large horde of aliens who are approaching.
Alien Hordes 3-Player - The moonbase must be defended from a large horde of aliens by two squads of human defenders.
Impregnator - A base must be defended from a group of aliens. If the aliens manage to kill a human, then a new alien will be created.
Alien Escape - The humans must escape from the alien-infested moonbase, avoiding the aliens which will impregnate dead humans. The aliens must kill all the humans.
Alien Containment - This is a 3-sided mission. The rebels objective is to defend the computers and stop the aliens from escaping; the Marsec Corp. must destroy the computers; and the aliens must escape before the time runs out.
Egg Hunt - Two humans sides must battle each other to obtain an alien egg. However, a third player controls the aliens and must prevent any eggs being taken.
Egg Collector - A nest of alien eggs has been found in the middle of the moonbase. Each side must collect the most alien eggs and take them back to their starting point for examination. Whoever has the most eggs on their floor at the end is the winner.
Alien Hordes: Xenophobia - The moonbase must be defended by the human colonists from a large horde of aliens who are approaching.
Alien - The humans must destroy the reactor and escape while avoiding the Queen alien. This mission is meant to be a recreation of the film.
Rebelstar Xenomorph - The moonbase must be defended by the human colonists from a large horde of aliens who are approaching.
SNAFU: Moonbase Assault - One randomly chosen player is the saboteur, and must destroy the computers, and the other players must prevent this. However, only the saboteur knows it is they who must destroy the computers; the other 3 players must try and work it out.
SNAFU: The Assassins - One randomly chosen player controls the assassins, and must kill all the units on another randonly chosen side. The other players must prevent this by killing the assassins. However, only the assassins know that they are the assassins, and the other 3 players must try and work it out.
SNAFU: The Assassins 2 - Each player must kill all the units on another randonly chosen side, and no others. However, no-one knows which side is trying to kill them.
SNAFU: Sabotage - One randomly chosen player is the saboteur, and must destroy the computers, and the other players must prevent this. However, only the saboteur knows it is they who must destroy the computers; the other 3 players must try and work it out. This mission is the same as 'SNAFU: Moonbase Assault' except it uses a randomly generated map.
The Blob Assassins - Sterner Regnix must be killed! One player controls the blobs who must try and kill him, and the other player controls Sterner and his bodyguards.
All Seeing Eye - A psychic must get to the extraction point before the time runs out. One player controls the poorly-armed psychic, who knows the position of all the enemies at all times. The other player must try and kill the psychic.
Crash Site - A lone crash survivor must be rescued from the centre of the map by the rescue squad. Unfortunately they are surrounded by advancing enemy forces.
The Raid - The Galactic Police must raid the hideout of a deadly gang and kill them.
Flag Collector - Each side must collect two F.L.A.G.s. from the centre of the moonbase and take them back to where they started. The first player to do this is the winner. A side gets 50 VPs per flag
Flag Protector (beta) - Each side must defend their own F.L.A.G.s while also trying to steal a flag from an enemy. The first player to get two FLAGS in their area will win. A side gets 50 VPs per flag
Alien Prison - Two humans sides must battle it out to capture the FLAG; however, it is located in the middle of a sealed prison which is infested with aliens. Once the prison walls have been breached, all hell will break loose.
Clone Wars - One player must attack the moonbase and destroy the computers. The other player must defend the moonbase with clones. Every turn, a new clone is created.
Reanimator - Research Monitors must survive the cadaver onslaught until help arrives. One player controls a group of zombies, who's distingtushing feature is the ability to come back to life after being killed. The other side controls the Research Monitors.
Reanimator 4-Player - Research Monitors must survive the cadaver onslaught until help arrives. One player controls a group of zombies, who's distingtushing feature is the ability to come back to life after being killed. The other side controls the Research Monitors.
Xenogeddon - Four very different lifeforms battle it out: humans, aliens, blobs and zombies. Each has their own skills and weaknesses.
The Assassins - Tunnels - Sterner Regnix must be killed! One player controls the assassins, and the other player controls Sterner and his bodyguards. This map contains lots of small buildings, and there are secret passageways between them.
Colonization - Four colonies battle it out in a war of attrition. They can build structures to create new clones and weapons, but must also defend those structures. The last colony to survive is the winner.
Colonization 2 - Four colonies battle it out in a war of attrition. They can build structures to create new clones and weapons, but must also defend those structures. The last colony to survive is the winner.
Alien Colony* - Two human and two alien colonies battle it out for supremacy. Each has their advantages; the humans can build structures and the aliens can lay eggs. The last surviving side is the winner.
Colony 3: Co-Op - Two colonies battle it out in a war of attrition. One player on each side controls the engineers who can build structures to create new clones and weapons; the other player controls the clones that are created. The last colony to survive is the winner.
Colonization 4 - Pleasure Dome - Four colonies battle it out in a war of attrition. They can build structures to create new clones and weapons, but must also defend those structures. The last colony to survive is the winner.
Underground Colony - Four colonies battle it out in a war of attrition. They can build structures to create new clones and weapons, but must also defend those structures. The last colony to survive is the winner.
Small Underground Colony - Four colonies battle it out in a war of attrition. They can build structures to create new clones and weapons, but must also defend those structures. The last colony to survive is the winner.
Underground Colony Co-Op [Large map] - Four colonies battle it out in a war of attrition. They can build structures to create new clones and weapons, but must also defend those structures. The last colony to survive is the winner.
Underground Colony Co-Op [Small map] - Four colonies battle it out in a war of attrition. They can build structures to create new clones and weapons, but must also defend those structures. The last colony to survive is the winner.
Underground Meltdown - This is the same as a normal Colonization mission, except there are computers in that will explode if destroyed.
Aliens v Humans Co-op - Two human and two alien colonies battle it out for supremacy. Each has their advantages; the humans can build structures and the aliens can lay eggs. The humans are on the same side, as are the aliens.
The Hunted - A terminator squad must kill poorly armed civilians.
Paradise Valley - The humans must get the Stardrive to the edge of the map