of producing massive amounts of energy at the cost of rendering the solar system uninhabitable, except for Habitats. A Ring World is a megastructure added in the Utopia expansion, offering a solar-system sized habitat equivalent to four massive habitable planets. A Matter Decompressor is a megastructure added in the Megacorp expansion to the game and allows the owner to harvest massive amounts of minerals from the cores of Black Holes. A Mega-Shipyard is a massive shipyard in orbit of a star, capable of producing ships much faster than average shipyards. The Aetherophasic Engine is a megastructure built by crisis aspirants, capable of destroying the entire galaxy as a side-product of allowing the race which constructed it to ascend to the "Shroud", an alternate dimension in the game composed of nearly pure energy A Quantum Catapult is a large megastructure built around a pulsar or neutron star that is capable of sending fleets instantly across the galaxy. It however is not completely accurate and thus can send fleets away from their intended destinations. Orbital/Planetary Scale Megastructures A Science Nexus is a massive orbital science laboratory which expands the empire's science production massively. A Sentry Array is a massive orbital station that gives you sight over the entire in-game galaxy. Habitats are orbital structures which serve the purpose of a small planet. A Mega Art Installation is a megastructure that improves your overall amenities and happiness in your empire. A Strategic Coordination Center is a megastructure that Increases your naval capacity, and ship speed, as well as adds several other bonuses. An Interstellar Assembly acts as a hub for the game's Galactic Community, increases your diplomatic weight, adds more envoys, and another empire's opinion of you. Gateways allow for near-instantaneous travel across the galaxy. In addition, there is a unique form of Gateway called "L-Gates" which link up to an extragalactic cluster of stars. Orbital Rings are massive ring structures built around planets that afford extra protection and increase the output of the planet. Hyper Relays are large structures that allow ships to jump to identical Hyper Relays in adjacent systems instead of using the existing hyperlane connections, thereby avoiding having to traverse systems at sublight speeds. In addition, many megastructures can also generate in "ruined" versions, which the player can later repair. See also Arcology Skyscraper References External links National Geographic Channel Megastructure.org Megastructure Art Stellaris Wiki Megastructures in Stellaris Exploratory