- Cloaking Lab
The Cloaking Lab allows you to increase the stealth rating on your ships by 5% per level. This is especially handy for transporting spies. All ships built at the shipyard on this planet will receive the increase. Existing ships are not retrofitted, they will need to be scuttled and rebuilt. All ships effected by this increase will have a slightly increased cost to build.
- Crashed Ship Site
The Crashed Ship Site allows you to add 5% to each of the stats / bonuses of each of your newly built ships per level of the Crashed Ship Site. And it does this without any additional cost to your ships, by allowing you to harvest alien technology from the crashed ship.
The Embassy is a building that allows the formation and management of one's alliance. Its level is also a prerequisite to building a Space Station Hull. Each level of the Alliance Leader's highest-level Embassy allows 2 more members to join the alliance. Alliance members need to have at least one embassy at any level to participate.
- Espionage Ministry
The Espionage Ministry allows the construction of spy pods, or, at level 15, spy shuttles, at the shipyard. It also allows better offensive training of your spies. The higher the building level, the more effective your spies will be applying their trade.
- Gas Giant Lab
The Gas Giant Lab does research on the gas giant settlement ship which deploys into a gas giant settlement platform. The gas giant settlement platform allows settlement of a gas giant. The higher the level of the gas giant lab the higher the level of the platform deployed from the gas giant settlement ship.
- Munitions Lab
The Munitions Lab allows for the construction of robotic war ships. Warfare is hard to do in the vast reaches of space, so it's often simpler to install a spy on an enemy planet and have him run missions. Spies are relatively inexpensive, and you can use them over and over, whereas robotic war ships last for exactly one attack. However, war ships are pretty much guaranteed to be effective, whereas a spy can fail.
The Observatory allows the construction of probes and colony ships at the shipyard. It also provides a list of all your active probes and the stars they are observing. A higher building level allows more probes to be constructed. You may only have one Observatory on a planet.
- Pilot Training Facility
The Pilot Training Facility increases the speed (3% per level), combat (3% per level) and stealth (3% per level) of the piloted ships you build at the shipyard. Existing ships are not retrofitted, they will need to be scuttled and rebuilt. Piloted ships affected by this increase will have a slightly increased cost to build. You may only have one Pilot Training Facility on a planet.
- Propulsion System Factory
Work done in the Propulsion System Factory allows your ships to move faster through space by way of upgraded engines. Each level grants an additional 5% increase in speed. All ships built at the shipyard on this planet will receive the increase. Existing ships are not retrofitted, they will need to be scuttled and rebuilt. All ships affected by this increase will have a slightly increased cost to build. You may only have one Propulsion System Factory on a planet.
- Shield Against Weapons
"A railgun system used to protect your planet from enemy ships." in-game description
The Shipyard is a building that allows the construction of ships. The types of ships that can be built in the Shipyard depend on ship-related buildings on the same colony. The higher the shipyard level the faster ships are produced and the better their attributes. In addition, you may have one ship in your build queue for each level of the shipyard.
- Space Port
The Space Port is the hangar and control tower for your ships. Here you can monitor your ships that are in transit, docked, or performing other tasks.
- Terraforming Lab
The Terraforming Lab is where research is done on the production of terraforming platform ships. Terraforming platform ships deploy into terraforming platforms which allows you to colonize planets your species wouldn't normally be capable of colonizing. The level of the building determines the level of the platform that is deployed from the ship.