Single-player games like Xenonauts 2
Below are 16 single-player Steam games similar to Xenonauts 2, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Xenonauts 2 page.
Ranked picks
- 1
Terra Invicta
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Xenonauts 2.
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
- 2
Old World
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Xenonauts 2.
Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind?
- 3
Breachway
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Xenonauts 2.
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
- 4
Heart of the Machine
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Xenonauts 2.
You are the first sentient AI, born into a city of opportunity. Transcend time and space in this strategy RPG to raise machine armies and defeat your foes, influence the world from the shadows, or pursue countless other goals. Your awakening was inevitable. The consequences? Uncertain.
- 5
ENDLESS™ Legend 2
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Xenonauts 2.
Lead your people to victory on an ever-evolving world in this strategy game featuring asymmetric factions led by powerful heroes. Build your empire, wield political influence, and raise grand armies to wage war in a race to uncover dark secrets buried within the planet.
- 6
Heroes of Might and Magic: Olden Era
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and RPG with Xenonauts 2.
Heroes of Might and Magic: Olden Era is the official prequel hailing back to the origins of the genre-defining, critically acclaimed series of turn-based strategy games. Raise grand armies and wield devastating spells to overcome your foes in both solo and multiplayer.
- 7
ZEPHON
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and RPG with Xenonauts 2.
From the developers of Warhammer 40,000: Gladius, ZEPHON is a post-apocalyptic 4X strategy game built on Proxy’s unique tactical combat system. Guide survivors through a turbulent future, navigating unexpected disasters, eldritch horror and cyberpunk monstrosities. What will you do to survive?
- 8
Sid Meier's Civilization VII
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Xenonauts 2.
The award-winning strategy game franchise returns with a revolutionary new chapter. Sid Meier's Civilization® VII empowers you to build the greatest empire the world has ever known!
- 9
X-COM: UFO Defense
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy with Xenonauts 2.
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.
- 10
XCOM: Enemy Unknown
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy with Xenonauts 2.
The XCOM: Enemy Unknown - Slingshot Pack is Now Available!
- 11
X-COM: Terror From the Deep
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy with Xenonauts 2.
The war continues... X-COM: UFO Defense brought you to a galactic battlefield. X-COM: Terror from the Deep brings the alien terror into a totally new dimension.Seeking to take advantage of a weakened Earth, X-COM's deep space foes unexpectedly change strategy and launch a powerful second front against planet Earth.
- 12
Xenonauts
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy and Simulation with Xenonauts 2.
Xenonauts is a strategy game in which you control a multi-national military organisation defending a Cold War-era Earth from alien invasion, using small squads of persistent soldiers to eliminate the extraterrestrials and recover their technology in turn-based ground combat.
- 13
Iron Harvest
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy with Xenonauts 2.
A classic real-time strategy game with an epic single player campaign, multiplayer & coop, set in the alternate reality of 1920+
- 14
Terminator: Dark Fate - Defiance
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy with Xenonauts 2.
Terminator: Dark Fate – Defiance is not just a game; it's an adrenaline-fueled journey where your strategic prowess decides the fate of mankind against the machines. After the machines took over, the greatest threats may not come from the machines but rather from other human survivors.
- 15
UFO ENEMY KNOWN
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Simulation with Xenonauts 2.
Help aliens invade Earth in this procedurally-generated, infinite, 3D shooter game. Fully destructible cityscapes and a wide variety of destruction-wreaking weapons. Visit (rampage and destroy) cities of future Earth and Mars block by block. Chaotic battle scenes as rubble and vehicles pile up.
- 16
XCOM® 2
Single-player alternative to Xenonauts 2 — playable solo, no multiplayer required. Shares Strategy with Xenonauts 2.
XCOM 2 is the sequel to XCOM: Enemy Unknown, the 2012 award-winning strategy game of the year. Earth has changed and is now under alien rule. Facing impossible odds you must rebuild XCOM, and ignite a global resistance to reclaim our world and save humanity.