Mars Mission was a Lego theme sold from 2007 to 2009. It is set on Mars and features astronauts, aliens, and high-tech machinery.
In the year 2045, a highly upgraded version of the Spirit, a previous Martian rover, was sent to the Red Planet, where it discovered mysterious, radio-active crystals (called 'Biodium' in the story). A crewed mission followed, which discovered intelligent life.
Once arriving on the Red Planet, with vehicles designed for exploration and mining, the astronauts began mining the energy crystals abundant there. But soon, the crystals begin disappearing. It does not take the astronauts long to find the source of the problem: aliens sneakily making raids on their crystals. However, once discovered, the aliens become more open – and dangerous – about their thefts. The Astros quickly convert their vehicles into a hi-tech defense military force, and so, the war on Mars began. Later, the Astros at Eagle Command Base intercept a coded message from the aliens, saying they are not from Mars, but still intend to drive away the astronauts and claim the crystals for themselves. It was a harsh struggle for a long while, with both sides on a stalemate, until one of the Astro machines, named the Crystal Reaper, accidentally stumbled across the cracks forming the surface of the Alien Hive on Olympus Mons.
Once awakened, the Hive, led by the ancient Alien Commander, led a strike force upon the teams of astronauts searching the mountain for energy crystals. There, the Battle of Olympus Mons began, with both Astros and Aliens taking heavy losses. An elite team of astronauts is sent into the hive to destroy it, and in the end, resulting in the destruction of the Hive. But the Alien Commander survives and retaliates by destroying the MX-81 Hypersonic Operations Aircraft.
This set is the flagship of the astronauts. It comes with an Alien Spaceship, Mining Rover, and Alien Commander minifigure. It sold for $89.99 USD
The set has two scoopers that pick up crystals on the front and two saws to chunk up the ground for crystals. There is a mini experiment lab under the cockpit. There is a small alien ship included. This is one of the few sets with the Alien Commander. The set can also be modified with the Lego Power Functions expansion set, to use two motors, controlled by infrared remote control. It sold for $59.99 USD
This set has an alien ship that can convert from an Alien Spaceship to a Land Walker. This set has a medium-sized robotic mining armoured suit. This is another set that has the Alien Commander. It sold for $29.99 USD
This set includes an Alien Gunship, and the human MX-41 Switch Fighter which can transform from a land vehicle to a fighter jet. It sold for $19.99 USD
This set comes with another mining unit, and an alien equipped with a jetpack. The mining unit has an attachment that holds devices to help mine crystals and has a small lab that has the results of an alien scan and a crystal. It sold for $19.99 USD
This set includes the Eagle Command Base, a futuristic space shuttle, and an alien strike craft. The Eagle Command Base has an alien and a crystal examiner. It has a pump system to pump crystals and aliens round the base. There is also a defense station that has four air powered foam missiles and makes use of the pump system. The alien strike craft is equivalent to the strike fighter in the Crystallien Conflict game. It sold for $79.99 USD
This set includes the Alien Mothership and a small mining station. The Alien Mothership can split into four different sections: two Vipers, one Dragon Cruiser (the front section), and the main hull. The main hull seems to be the "Experiment Lab" in the CrystAlien Conflict game. The defense station includes a small mining unit attached to a defense turret with foam darts like the one in the Eagle Command Base. It sold for $49.99 USD
This set includes the MX-71 Recon Dropship, a small mining unit, and the only upright alien attack craft. The Recon Dropship's design allows it to pick up the mining unit, carry it around, then drop it off again. The Recon Dropship's weapons include a missile launcher, twin laser cannons, and two homing rockets. The alien craft seats two aliens, and is armed with seven lasers it appears as the "Crystal Extractor" in the online game. In the Crystallien Conflict game, four of its cockpits make up the "Training Camp" It sold for $39.99 USD
This set includes another alien strike craft and a small mining unit like the one with the Dropship, but instead containing a pod for captured aliens. The alien craft's wings can open into attack mode to show 15 lasers and deliver maximum firepower. On the CrystAlien Conflict game, the alien ship (in stealth mode) is the Hyper Carrier, equivalent to the Dropship. It sold for $19.99 USD
This set includes the heavy duty Trike, a vehicle that is a quick transport and deadly scout. It is armed with four lasers and carries an alien transport pod. The MT-31 Trike uses one energy crystal. It sold for $11.99 USD
This set includes the Astro Fighter and an unarmed helpless alien. The MX-11 Astro Fighter is armed with a single laser cannon, powered by a single energy crystal. It sold for $9.99 USD
This set includes an alien speeder and the Claw-Tank. The Claw-Tank has an energy disk shooter that holds six energy disks. The two alien transport pods are positioned directly above the treads. The Claw-Tank's large cab can rotate a full 360 degrees. The alien speeder is a small, versatile craft that battles the Claw-Tank with its lasers. It sold for $29.99 USD
This massive machine rumbles across Martian terrain, searching for energy crystals. There is a small alien speeder with lasers, but the Mars Mission Team can fight back with an energy sphere launcher. The mining unit has two leach craft which can split off from the main unit if the main unit is attacked. It sold for $69.99 USD
This set features a giant LEGO Mars Mission vehicle which moves by means of its four robotic legs. It also features a large spinning laser drill mounted on the top of it. One astronaut controls this drill, while the second astronaut controls the bottom half of the vehicle. In addition, the spaceship located on the front of the vehicle can be detached to locate and transport energy crystals back to base. This set also features an alien vehicle piloted by the alien commander. It sold for $79.99 USD
This set has a mini mining robot and an astronaut, which it helps to find crystals using its crystal energy detector. When it finds some the astronaut will mine it with his pick-axe. The astronaut has a laser gun to defend him and the robot from aliens. It sold for $6.99 USD
This set comes with a small alien ship and an alien driver. It sold for $6.99 USD
This set comes with a small spaceship, along with the astronaut that drives it. It is a little smaller than the MX-11 Astro Fighter, but has two laser cannons mounted on the front. It sold for $6.99 USD
Crystalien Conflict was a real-time strategy web browser game based on the Mars Mission vehicles and sets. The player could build and command either astronaut or alien units and structures through a short series of levels. The game was playable on the official website until the discontinuation of the theme.