Single-player games like X-COM: UFO Defense
Below are 17 single-player Steam games similar to X-COM: UFO Defense, 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 X-COM: UFO Defense page.
Ranked picks
- 1
X-COM: Terror From the Deep
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
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.
- 2
XCOM: Enemy Unknown
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
The XCOM: Enemy Unknown - Slingshot Pack is Now Available!
- 3
X-COM: Apocalypse
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
There's something evil in the city tonight... Earth has been ravaged by human excess, petty conflict and alien invasion. The world's population has been herded into huge cities, the first of which was Mega Primus. 2084: A Utopia shattered, social collapse and civil unrest reigns in Mega Primus. Fiendish aliens terrorize the city.
- 4
Xenonauts
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
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.
- 5
GhostControl Inc.
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
Manage a team of ghosthunters and free London from paranormal terror in turn-based battles. Develop your own strategy and build your business well.
- 6
UFO: Aftermath
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
UFO: Aftermath is a 3D isometric, tactical strategy game with a rich and compelling sci fi story.
- 7
Into the Breach
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
Control powerful mechs from the future to defeat an alien threat. Each attempt to save the world presents a new randomly generated challenge in this turn-based strategy game.
- 8
Gears Tactics
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
Gears Tactics is the fast-paced, turn-based strategy game from one of the most-acclaimed video game franchises – Gears of War. Outnumbered and fighting for survival, recruit and command your squad to hunt down an evil mastermind who makes monsters.
- 9
Phoenix Point
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
The acclaimed strategy game from the creator of X-COM. Fight tactical battles on procedural maps against a foe that adapts to your tactics. Manage diplomacy and economy on a global scale. Research, explore, overcome. Now includes Steam Workshop support for mods!
- 10
Jagged Alliance 3
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
The country of Grand Chien is thrown into chaos when the elected president goes missing and the paramilitary force known as “the Legion” seizes control. Hire mercs, meet interesting characters, and fight in tactically deep turn-based combat in this true successor to a beloved franchise.
- 11
The Banner Saga
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
Live through an epic role-playing Viking saga where your strategic choices directly affect your personal journey. Make allies as you travel with your caravan across this stunning yet harsh landscape. Carefully choose those who will help fight a new threat that jeopardizes an entire civilization.
- 12
Sid Meier's Colonization (Classic)
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required.
The New World lies before you with all its peril, promise and infinite possibility. Your colonists anxiously follow you to shore. The treasures of an entire continent await you.
- 13
X-COM: Enforcer
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
X-COM: Earth's top-secret eXtraterrestrial COMbat unit The Place: America - early 21st century The Mission: Eradicate the extraterrestrials Alien forces have invaded Earth and are terrorizing the population.
- 14
X-COM: Interceptor
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required. Shares Strategy with X-COM: UFO Defense.
They're back...only this time the heinous aliens are out to destroy Earth and rule the new frontier. As X-COM commander, it's your sole duty to protect humanity and the prized mining operations in outer space.
- 15
Sid Meier's Covert Action (Classic)
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required.
Sid Meier's Covert Action - A Techno-Thriller From the Case Files of Max Remington.
- 16
Sid Meier's Pirates! Gold Plus (Classic)
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required.
Ahoy mateys! From the Mind of Sid Meier, The Golden Age of Buccaneering has returned with Pirates! Gold!
- 17
BloodNet
Single-player alternative to X-COM: UFO Defense — playable solo, no multiplayer required.
I met her in her penthouse, expecting payment for the freelance job-and perhaps a little more. But I got more than I bargained for. I'm now part of an exclusive fraternity that moves catlike in the night through a world of high technology and senseless violence.