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

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.

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.

Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.

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.

Guide a group of space settlers trying to establish an outpost on a remote planet. Grow food, collect energy, mine resources, manufacture bots, and build a fully self-sufficient colony.

Rewrite medieval history through bloody siege combat and grand strategy. Rule, build, and wage war as one of the minor lords of medieval Europe… Medieval Kingdom Wars redefines Medieval Grand Strategy. Build your cities, wage your wars, serve your king, and experience siege combat with a degree of brutality never seen before

Sol 0 is a real time strategy game where you establish the first Martian colony. From the first human footprints on Martian soil to a thriving and self-sustaining colony, Sol 0 imagines a near future using technology that could be available within the next few decades. Make use of minerals and resources across the Martian surface to expand from the first exploratory rover to an independent frontier.

A brand-new spaceship sandbox MMO set in an alternate New Eden, the sci-fi universe of Eve Online.

It's one year after the collapse of civilization and self-centered hedge fund manager Joe Wheeler emerges from his specially constructed bunker in search of food. This is a huge open-world RPG where you have the freedom to play how you want - but your choices have consequences. Your aim is to find other survivors, gain their respect, and build a community. You'll scavenge for supplies, trade, plant crops, go on quests, face moral dilemmas, go to war, and uncover dark, terrible secrets!

StarDrive 2 is a 4X Turn Based Strategy game built in the classic style of the singular and incredible Master of Orion 2. In StarDrive 2 you will explore a vibrant galaxy filled with danger and intrigue in a deep turn-based strategy layer. You will design custom spaceships and deploy them into real-time battles with spectacular graphics and effects. You will conquer worlds in a turn-based tactical ground combat mode. You'll deal with aliens, pirates, monsters, and ancient threats, most of whom want to kill you to make room for their own empires. StarDrive 2 also features a "Battle Arena" mode where you can get right to the action by designing ships and playing through story-based campaigns with your fleet. Earn money as you work through the challenges to unlock new ships and weapons. And of course, you can customize your race for a unique experience, engage in deep diplomatic negotiations, research hundreds of different technologies (or maybe steal them with your spies), control strategic resources for the benefit of your empire, enslave enemy citizens, build armies of giant mechs, and so much more. In the end, StarDrive 2 provides a comprehensive and beautiful 4X experience. Check out our screenshots and our videos and come join us on the forums. We have a large and active community and would love to have you come share your thoughts and questions with us.