XCOM: Enemy Within

Parent game

XCOM: Enemy Unknown will place you in control of a secret paramilitary organization called XCOM. As the XCOM commander, you will defend against a terrifying global alien invasion by managing resources, advancing technologies, and overseeing combat strategies and individual unit tactics. The original XCOM is widely regarded as one of the best games ever made and has now been re-imagined by the strategy experts at Firaxis Games. XCOM: Enemy Unknown will expand on that legacy with an entirely new invasion story, enemies and technologies to fight aliens and defend Earth. You will control the fate of the human race through researching alien technologies, creating and managing a fully operational base, planning combat missions and controlling soldier movement in battle.
Part of collection:
XCOM
(last 3 games)

XCOM: Chimera Squad delivers an all-new story and turn-based tactical combat experience in the XCOM universe.

The XCOM 2: War of the Chosen - Tactical Legacy Pack includes a collection of new game modes, maps, weapons, armors, Photobooth options, and more that honors the legacy of the XCOM series.

XCOM 2: War of the Chosen adds extensive new content in the fight against Advent when additional resistance factions form in order to eliminate the alien threat on Earth. In response, a new enemy, known as the “Chosen,” emerges with one goal: recapture the Commander. This expansion includes new Hero classes to counter the “Chosen”, new enemies, missions, environments and increased depth in strategic gameplay.
Part of franchise:
X-COM
(last 3 games)

XCOM: Chimera Squad delivers an all-new story and turn-based tactical combat experience in the XCOM universe.

The XCOM 2: War of the Chosen - Tactical Legacy Pack includes a collection of new game modes, maps, weapons, armors, Photobooth options, and more that honors the legacy of the XCOM series.

The XCOM 2 Collection includes the award-winning strategy game XCOM 2, the War of the Chosen expansion, and four DLC packs (Resistance Warrior Pack, Anarchy’s Children, Alien Hunters, Shen’s Last Gift, Tactical Legacy Pack) for a bundled discount.
Could be interesting

In Endless Space you play the role of the leader of one of the many intelligent beings of a galaxy at the beginning of the space age. Very quickly, you discover the remnants of an older civilization. That civilization called themselves the Endless, among their ruins, a matter called Dust with amazing proprieties is found. It shapes into whatever its user thinks of, it gives a reality to dreams… dreams that lead to the extinction of the Endless. Since then that matter became the most precious matter of the universe, and therefore the universal currency… but in front of the power of the Dust it is hard, even for the purest beings, not to fall under its charm… We want the players to live an experience that goes beyond just strategy. You will live your own story of space conquest, with your own randomly generated galaxy full of civilizations, lifeforms, technologies and unknown worlds for you to conquer.

Another sunrise, another day of toil. Food must be grown, industries built, science and magic advanced, and wealth collected. Urgency drives these simple efforts, however, for your planet holds a history of unexplained apocalypse, and the winter you just survived was the worst on record. A fact that has also been true for the previous five. As you discover the lost secrets of your world and the mysteries of the legends and ruins that exist as much in reality as in rumor, you will come to see that you are not alone. Other peoples also struggle to survive, to grow, and perhaps even to conquer. You have a city, a loyal populace, and a few troops; your power and magic should be sufficient to keep them alive. But beyond that, nothing is certain… Where will you go, what will you find, and how will you react? Will your trail be one of roses, or of blood?

We take the colony sim genre into the near future, onto a lush planet where humans are making their first foothold. Characters and alien wildlife are brought to life through a rigorous simulation and the game plays out as a tug-of-war between humans and nature on a planet full of opportunities and dangers. Understanding the alien environment is crucial - discovered resources and crafting options enable you to adapt when food gets scarce, equipment breaks and alien animals attack.

The Earthlings have joined the interstellar club. The galaxy will never be the same. The year is 2086 and Earth has detected an alien distress call originating from the surface of Triton. In response, Star Control is formed with you as The Captain of Earth's first prototype starship.

A World to Build… or Destroy. “A war is coming… a war between East and West - between Kingdoms and Empires, between man and Fallen. A future of blood and death, of chaos and destruction.” – the Oracle Ceresa.

The Long Journey Home combines the endless freedom of space with a new open questing system that always leaves you in command. Deliver the stranded Glukkt to his homeworld as he asks, or to your new slaver friends? Attempt to make allies with everyone, or pin your hopes on the tougher races, and hope they never turn on you? Jump by jump, make hard decisions and live with the consequences, in a universe that is never the same twice.

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.

Take the role of Captain in this Space Survival Simulation as you explore a massive star system in search of a new home for humanity. Outfit your ship, hand pick your crew and set off on a journey through an open-world where you must scavenge resources, shelter civilians and outrun a hostile alien force.

The Outer Worlds is a new single-player sci-fi RPG from Obsidian Entertainment and Private Division. As you explore the furthest reaches of space and encounter a host of factions all vying for power, who you decide to become will determine the fate of everyone in Halcyon. In the corporate equation for the colony, you are the unplanned variable.

LEGRAND LEGACY is a spiritual successor to some all-time favorite JRPGs with a fresh take on the classic turn-based combat. Explore a beautifully hand-drawn world riddled with fantastical creatures, devastating wars, and intriguing stories of personal redemption. Play our demo and discover why Legrand Legacy is the "Most Promising Game" of the year!