SpaceTac

Warhammer 40,000: Deathwatch is a turn-based strategy game, set on the edge of Imperial space, where your Space Marines will take on the Tyranids in a series of tactical engagements.

30 years on, the battle for our world's future continues. Super Robot Wars is a tactical RPG that brings characters and robots from a variety of mecha anime together to battle their mutual foes.

Last Origin is a strategy RPG mobile game with hero collecting mechanics standard to most games of its kind. The player takes the role of a newbie commander who is, as far as we know, the last remaining human being in a post-apocalyptic world ravaged by alien parasites known as Iron Worms.

MissionForce: Cyberstorm is a turn-based strategy game set in the Earthsiege universe. Cyberstorm focuses on tactical combat with giant robots. The game includes a lot of rich backstory and tons of customization for your squad.

Songs of Silence is an Art Nouveau-inspired fantasy strategy game with a unique mix of turn-based kingdom management, hero development and real-time combat.

Empire is a 4X wargame created in 1972 by Peter Langston, taking its name from a Reed College board game of the same name. It was initially created by Langston in BASIC on an HP2000 minicomputer at Evergreen State College. When the host computer was retired, the source code to the game was lost. Subsequently, two other authors each independently wrote a new version of the game, both named Empire. In the decades since, numerous other versions of Empire have been developed for a wide variety of platforms. The game is turn-based, with players giving orders at their convenience, and in some versions then executed simultaneously by the game server at set intervals ranging from a few hours to once per day. The game world consists of "sectors", which may be designated as agricultural, industrial, etc. There are dozens of unit types requiring a variety of raw and manufactured materials for their creation. "Blitz" games may last a few hours, typical games a few months, and some larger games up to a year.

Galactic Civilizations II (GalCiv II) is a 4X Grand strategy game set in the 23rd century, when multiple alien civilizations scramble to conquer the galaxy, planet by planet, by force, diplomacy, influence (culture), or technology. GalCiv II focuses on the single player experience that consists of a Campaign mode and a "Sandbox" mode, and omits multi-player. The game is notable for its artificial intelligence, which is challenging without being given resources and abilities not available to the player, as is common in the majority of strategy games.

Master of Orion 2 also known as MOO2 is considered the classic 4x turn based strategy game set in space. The game has a kind of cult status and even by to days standards is still only matched in game play by very few of its competitors.

Age of Wonders: Planetfall is the new strategy game from Triumph Studios, creators of the critically acclaimed Age of Wonders and Overlord series, bringing all the exciting tactical-turn based combat and in-depth 4X empire building of its predecessors to space in an all-new sci-fi setting. Emerge from the cosmic dark age of a fallen galactic empire to craft a new future for your people. Explore the planetary ruins and encounter other surviving factions that have each evolved in their own way, as you unravel the history of a shattered civilization. Fight, build, negotiate and technologically advance your way to utopia, in a deep single player campaign, on random maps and against friends in multiplayer.

Prepare to accept history's greatest challenge - build the world's most powerful empire over a span of 6,300 years, reaching from primitive history to the future realms of science-fiction. Take your place beside history's greatest leaders as you master the intricate strategies of governing, warfare, diplomacy, trade and science. Sow the seeds of an empire as you cultivate a tribe of settlers in 4,000 BC. Hear the cheers of approval as you lead your flourishing society into the future of 2,300 AD.