A mass driver or electromagnetic catapult is a proposed method of non-rocket spacelaunch which would use a linear motor to accelerate and catapult payloads up to high speeds. Existing and proposed mass drivers use coils of wire energized by electricity to make electromagnets, though a rotary mass driver has also been proposed. Sequential firing of a row of electromagnets accelerates the payload along a path. After leaving the path, the payload continues to move due to momentum.
Master of Orion is a turn-based, 4X science fiction strategy game in which the player leads one of ten races to dominate the galaxy through a combination of diplomacy and conquest while developing technology, exploring and colonizing star systems.
Eve Online is a space-based, persistent-world massively-multiplayer online role-playing game (MMORPG) developed and published by CCP Games. Players of Eve Online can participate in a number of in-game professions and activities, including mining, piracy, manufacturing, trading, exploration, and combat. The game contains a total of 7,800 star systems that can be visited by players.
Irrlicht is an open-source game engine written in C++. It is cross-platform, officially running on Windows, macOS, Linux and Windows CE and due to its open nature ports to other systems are available, including FreeBSD, Xbox, PlayStation Portable, Symbian, iPhone, AmigaOS 4, Sailfish OS via a Qt/QML wrapper, and Google Native Client.
Stars! is a turn-based strategy, science fiction 4X video game, originally developed by Jeff Johnson and Jeff McBride with help from Jeffrey Krauss for personal use, initially released as shareware for Microsoft Windows in 1995. A retail version was later produced for, and published by Empire Interactive, with developer Jason Gaston added to the team for quality assurance testing, although the shareware version continued.
Vendetta Online is a twitch-based, science fiction massively multiplayer online role-playing game (MMORPG) developed by Guild Software for the operating systems Android, Linux, Mac OS X, iOS, and Microsoft Windows. It uses the NAOS game engine, a fully real-time flight model and combat system, to offer first-person/third-person shooter-style player versus player and player versus environment battle action against the backdrop of a massively multiplayer universe. Vendetta Online shipped as a commercial MMORPG in November 2004 with a subscription-based business model, although it has been running continuously since April 2002. Vendetta Online is available to play across a wide array of platforms, including the Oculus Rift virtual reality display, allowing all users to directly interact in a single, contiguous galaxy. It is also notable for its twitch combat and fidelity to real physics.
FreeSpace 2 is a 1999 space combat simulation computer game developed by Volition as the sequel to Descent: FreeSpace – The Great War. It was completed ahead of schedule in less than a year, and released to very positive reviews, but the game became a commercial failure, and was described by certain critics as one of 1999's most unfairly overlooked titles.
Space Empires is a series of 4X turn-based strategy games by Malfador Machinations that allow the player to assume the role of the leader of a space-faring civilization.
Elite Dangerous is an online space flight simulation game developed and published by Frontier Developments. The player commands a spaceship and explores a realistic 1:1 scale, open-world representation of the Milky Way galaxy, with the gameplay being open-ended. The game is the first in the series to attempt massively multiplayer gameplay, with players' actions affecting the narrative story of the game's persistent universe, while also retaining a single-player mode. Elite Dangerous is the fourth game in the Elite video game series. It is the sequel to Frontier: First Encounters, released in 1995, becoming the top selling game for Christmas of that Year.
Galactic Civilizations II: Dread Lords is a 4X turn-based strategy by Stardock for Microsoft Windows. It is the sequel to the 2003 game, Galactic Civilizations, and was released at retail and on Stardock's online subscription service, TotalGaming.net, on February 21, 2006. An expansion, Dark Avatar, was released in February 2007. A second expansion, Twilight of the Arnor, was released in April 2008.
Sins of a Solar Empire is a 2008 science fiction real-time strategy 4X video game developed by Ironclad Games and published by Stardock Entertainment for Microsoft Windows operating systems. It is a real-time strategy (RTS) game that incorporates some elements from 4X games; its makers describe it as "RT4X". Players are given control of a spacefaring empire in the distant future, and are tasked with conquering star systems using military, economic and diplomatic means.
Nomad is a 1993 space trading and combat game developed by Intense! Interactive and Papyrus Design Group. It was published by GameTek for MS-DOS.
Space flight simulation is a genre of flight simulator video games that lets players experience space flight to varying degrees of realism. Common mechanics include space exploration, space trade and space combat.
Starpoint Gemini is a real-time simulation/role-playing game for PC developed by Little Green Men Games, published by Iceberg Interactive and released December 15, 2010. It has received 4 sequels: Starpoint Gemini 2, Starpoint Gemini Warlords and Starpoint Gemini 3.
Lords of the Black Sun is a 4X turn-based strategy computer game created by Portuguese developer Arkavi Studios and published by Iceberg Interactive. It was made available as an early access game on Steam December 6, 2013 and was released on September 12, 2014.
Xenonauts is a turn-based science fiction video game developed and published as the maiden title of London-based independent game studio Goldhawk Interactive. Inspired by the 1994 game X-COM: UFO Defense, gameplay involves the player taking the role of the commander of a clandestine organization known as the Xenonauts, and attempting to defeat an alien invasion of Earth in the alternative history year 1979. The game was released on June 17, 2014 for Microsoft Windows. Ports to Mac OS X and Linux were initially based on the Wine compatibility layer, until native ports became available in September 2015. A sequel, Xenonauts 2, was released through early access in 2023.
Kerbal Space Program (KSP) is a space flight simulation video game developed by Mexican studio Squad for Linux, macOS, Windows, PlayStation 4, PlayStation 5, Xbox Series X/S and Xbox One. In the game, players direct the space program of a species of green humanoid aliens known as "Kerbals". The game features a pseudorealistic orbital physics engine, allowing for various real-life orbital maneuvers such as Hohmann transfer orbits and orbital rendezvous.
FTL: Faster Than Light is a roguelike game created by indie developer Subset Games, which was released for Windows, MacOS, and Linux in September 2012. In the game, the player controls the crew of a single spacecraft, holding critical information to be delivered to an allied fleet, while being pursued by a large rebel fleet. The player must guide the spacecraft through eight sectors, each with planetary systems and events procedurally generated in a roguelike fashion, while facing rebel and other hostile forces, recruiting new crew, and outfitting and upgrading their ship. Combat takes place in pausable real time, and if the ship is destroyed or all of its crew lost, the game ends, forcing the player to restart with a new ship.
StarDrive 2 is a 4X video game developed by Zero Sum Games. It is the sequel to StarDrive. Iceberg Interactive released it in 2015.
Horizon is a 4X video game developed by Canadian studio L3O Interactive and published by Iceberg Interactive in 2014.
