Single-player games like X-COM: Enforcer
Below are 21 single-player Steam games similar to X-COM: Enforcer, 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: Enforcer page.
Ranked picks
- 1

MannyTD
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required. Shares Strategy with X-COM: Enforcer.
Manny TD is a hybrid tower defense and third-person shooter with random in game elements. Join and get your personal high score!
- 2

The Bureau: XCOM Declassified
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
The year is 1962 and the Cold War has the nation gripped by fear. A top-secret government unit called The Bureau begins investigating a series of mysterious attacks by an enemy more powerful than communism.
- 3

Fortified
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required. Shares Strategy with X-COM: Enforcer.
Fortified is an explosive strategy shooter where players will defend the Earth against a menacing Martian invasion in the 1950s. Play as one-of-four pulp inspired heroes as they fight swarms of terrifying robots with an arsenal of Cold War era weapons and experimental technology.
- 4

Evolva
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required. Shares Strategy with X-COM: Enforcer.
Evolva combines the excitement of a fast paced shoot-em-up with the tactical challenge of commanding a squad. Fight against the alien parasites and save the planet. This is survival of the fittest!
- 5

Dead Space
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
The sci-fi survival-horror classic returns, completely rebuilt to offer an even more immersive experience — including visual, audio, and gameplay improvements — while staying faithful to the original game’s thrilling vision.
- 6

Dead Space™ 2
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.
- 7

Dead Space (2008)
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.
- 8

Alien Breed: Impact
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.
- 9

Unreal Gold
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Your prison ship has crash-landed on the fastest, sleekest, most dangerous 3D world ever created. Look around, crystal clear water shimmers, shadows dance and shift, alien architecture fades into the horizon.
- 10

Unreal Tournament 3
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Now includes the free Titan Pack expansion! The Titan Pack gives players a substantial amount of enhanced features and new content, including many original environments, new gametypes, the namesake Titan mutator, powerful deployables and weapons, new characters, and the Stealthbender.
- 11

Serious Sam 3: BFE
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Serious Sam 3: BFE is a prequel to the original indie fast action FPS and Game of the Year sensation - Serious Sam: The First Encounter!
- 12

Serious Sam II
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Serious Sam II is a shot of adrenaline to the hearts of first-person shooter fans across the world. This is serious!
- 13

MDK2 HD
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Overhaul Games brings MDK2 back to the PC in incredible high definition, with enhanced graphics, sound, and gameplay. See the classic action platformer the way it was meant to be seen, heard, and played... on a PC!Kurt Hectic in his snazzy suit with ribbon chute is back to save the universe. This time he is teamed with the genius Dr.
- 14

X-COM: UFO Defense
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required. Shares Strategy with X-COM: Enforcer.
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace.
- 15

Sid Meier's Colonization (Classic)
Single-player alternative to X-COM: Enforcer — 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.
- 16

X-COM: Apocalypse
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required. Shares Strategy with X-COM: Enforcer.
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.
- 17

X-COM: Terror From the Deep
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required. Shares Strategy with X-COM: Enforcer.
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.
- 18

X-COM: Interceptor
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required. Shares Strategy with X-COM: Enforcer.
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.
- 19

Sid Meier's Covert Action (Classic)
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Sid Meier's Covert Action - A Techno-Thriller From the Case Files of Max Remington.
- 20

Sid Meier's Pirates! Gold Plus (Classic)
Single-player alternative to X-COM: Enforcer — playable solo, no multiplayer required.
Ahoy mateys! From the Mind of Sid Meier, The Golden Age of Buccaneering has returned with Pirates! Gold!
- 21

BloodNet
Single-player alternative to X-COM: Enforcer — 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.