Lethal Company
The creatures living in the facilities on each abandoned moon are alien life, and Steam tags…
PC
In these games the threat comes from somewhere else: a creature that came aboard with the salvage, a signal from another planet, a whole world made of bone and metal. You hide in vents and lockers, listen for movement and try to understand something that does not think like you. What frightens is how little you know about what is hunting you, and how much better it knows the dark.
The top 30 of 43 alien horror games, ranked by player and critic scores
PsychologicalVoices of the VoidAs the days pass you meet extraterrestrials and alien ships among the signals and at the base
98% on itch.io (5,943 ratings) · Pay what you want · PC
Co-opLethal CompanyThe creatures living in the facilities on each abandoned moon are alien life, and Steam tags the game Aliens.
97% on Steam (511,448 reviews) · 10 h or more · Paid · PC
PsychologicalHello Charlotte EP2: Requiem Aeternam DeoThe store introduces Charlotte's alien friends alongside a maggot cat and a certain Observer.
97% on Steam (2,479 reviews) · about 4 h · Free · PC
PsychologicalHello Charlotte EP1: Junk Food, Gods and Teddy BearsCharlotte lives in the House with alien friends, among them Dr. Huxley, an alien surgeon.
96% on itch.io (894 ratings) · about 1 h · Free · PC
Co-opBarotraumaThe crew explores the ruins of an alien civilization on Europa and recovers alien artifacts on missions
94% on Steam (90,532 reviews) · 51 h or more · Paid · PC, Mac, Linux
Co-opSpecies: UnknownThe developer describes alien creatures, and the roster of specimens includes an octopus-like alien that decapitates players.
94% on Steam (11,609 reviews) · about 25 min · Paid · PC
SurvivalAlien: IsolationA single alien that cannot be killed roams Sevastopol, listening for noise and hunting Amanda.
93% on Steam (67,246 reviews) · 19 h or more · Paid · PC, Mac, Linux, PlayStation, Xbox, Switch, iPhone, Android
2D horrorLakeview Cabin CollectionEpisode VI pits a handful of janitors on a space station against multiplying alien creatures that move through its delivery system.
94% on Steam (1,610 reviews) · 12 h or more · Paid · PC, Mac, PlayStation, Xbox, Switch
SurvivalDead Space (2008)The ship's crew has been slaughtered and infected by an alien scourge after the ship unearthed a strange artifact.
92% on Steam (29,363 reviews) · 11 h or more · Paid · PC, Xbox
Co-opSpace Beast Terror FrightShips infested with Space Beasts, which a store quote calls nasty wall-crawling xenomorphs and Bloody Disgusting compares to Aliens
92% on Steam (1,797 reviews) · about 9 h · Paid · PC
Body horrorThe Visitor ReturnsYou play a small pink alien grub from space, the death slug of the first game, back on Earth to feed.
92% on Newgrounds (1,679 ratings) · about 10 min · Free · Browser
SurvivalPreyThe station is overrun by the Typhon, a hostile alien force with both physical and psychic powers.
91% on Steam (54,912 reviews) · 16 h or more · Paid · PC, PlayStation, Xbox
Action horrorAliens vs. PredatorXenomorphs swarm the Marine through the colony's corridors, climbing walls and ceilings, and in one campaign you play as one.
91% on Steam (21,791 reviews) · about 9.5 h · Paid · PC, Xbox
2D horrorCohabitationSet on the planet Alkia, 200 light years away, home to two alien species: the peaceful Alkians and the Holl who hunt them.
96% on itch.io (245 ratings) · about 1.5 h · Pay what you want · Browser, PC, Mac
Walking simulators[HERROR] Gas Station CaseThe store calls it a cinematic alien horror, and a bloodied man asks whether you have seen those creatures too.
95% on Steam (339 reviews) · about 2 h · Paid · PC
SurvivalChordosisPale, hairless aliens with big black eyes stand at the end of the tunnels while you aim a pistol at them.
94% on itch.io (289 ratings) · about 1 h · Paid · PC
Body horrorThe Thing: RemasteredSteam describes the enemy as the shape-shifting alien life-form from the 1982 film The Thing.
90% on Steam (1,446 reviews) · about 6 h · Paid · PC, PlayStation, Xbox, Switch
2D horrorStowawayA nasty alien came aboard on the ship's last salvage run, and the lone surviving pilot has to deal with it.
94% on itch.io (188 ratings) · about 30 min · Free · Browser, PC, Mac, Linux
SurvivalThe Voidness - Lidar Horror Survival GameFrancesca Lee is sent to study the void on a newly founded planet, and Steam players tag it Aliens.
83% on Steam (332 reviews) · about 2 h · Paid · PC
Body horrorThe VisitorA small pink slug from another planet lands on Earth and you guide it from prey to prey
88% (165,000 ratings) · about 10 min · Free · Browser
PsychologicalSanitariumThe children's town is overseen by a malevolent alien entity known as Mother
84% on Google Play (1,710 ratings) · about 9 h · Paid · PC, Mac, Linux, iPhone, Android
PS1Invasion of The Halloween FiendsThe maker's content note mentions gun violence towards aliens and alien violence towards humans.
95% on Steam (126 reviews) · about 45 min · Paid · PC
Walking simulatorsDescentThe maker tags it Aliens, and a spidery creature hangs in a glowing amber tank aboard the ship
90% on itch.io (180 ratings) · about 30 min · Free · Browser
AnimeSucker for Love: Crush LandingYou try to date and keep alive Hheily, a shapeshifting being from space who takes the form of a girl from a magazine
89% on Steam (225 reviews) · Paid · PC
SurvivalLook OutsideThe event is tied to the Visitor, an extraterrestrial object passing through the solar system.
98% on Steam · 11 h or more · Paid · PC
Puzzle horrorWhat happened to the crew?The crew's trouble begins with an artificial signal picked up by a rover on the planet, and something may be looking back.
90% on itch.io (153 ratings) · about 6 h · Free · Browser
AnimeMärchen LineHumanity's Armada wages war on the True Enemy, alien hordes designed to feel faceless and endless after the Xenomorph, the Zerg and the Tyranids.
98% on itch.io (55 ratings) · Free · PC, Mac, Linux
FNAFThermomorphThe maker names the film Alien as one of its two inspirations, and the threat is unknown creatures aboard the ship.
90% on itch.io (116 ratings) · about 10 min · Free · Browser, PC, Mac, Linux, Android
PS1Dread X Collection 3Leo carries a live-in alien consciousness, Prometheus, whom he is trying to return to his homeworld.
92% on Steam · about 8 h · Paid · PC
2D horrorOutpost:HavenThe station is overrun by aliens, some waiting in the dark with only their eyes showing, others charging through the furniture
82% (4,434 ratings) · about 1.5 h · Free · Browser
7 games
The creatures living in the facilities on each abandoned moon are alien life, and Steam tags…
PC
The crew explores the ruins of an alien civilization on Europa and recovers alien artifacts on…
PC / Mac / Linux
The developer describes alien creatures, and the roster of specimens includes an octopus-like…
PC
Ships infested with Space Beasts, which a store quote calls nasty wall-crawling xenomorphs and…
PC
Xenomorphs swarm the Marine through the colony's corridors, climbing walls and ceilings, and in…
PC / Xbox
The Klowns are invaders from space whose circus-tent spaceship glows over the town.
PC / PlayStation / Xbox
An alien organism able to perfectly imitate its prey stalks the crew and hides among them
PC / PlayStation / Xbox
Done in an hour or so
Charlotte lives in the House with alien friends, among them Dr. Huxley, an alien surgeon.
PC
The developer describes alien creatures, and the roster of specimens includes an octopus-like…
PC
You play a small pink alien grub from space, the death slug of the first game, back on Earth to…
Browser
Set on the planet Alkia, 200 light years away, home to two alien species: the peaceful Alkians…
Browser / PC / Mac
Pale, hairless aliens with big black eyes stand at the end of the tunnels while you aim a…
PC
A nasty alien came aboard on the ship's last salvage run, and the lone surviving pilot has to…
Browser / PC / Mac / Linux
A small pink slug from another planet lands on Earth and you guide it from prey to prey
Browser
The maker's content note mentions gun violence towards aliens and alien violence towards humans.
PC
The maker tags it Aliens, and a spidery creature hangs in a glowing amber tank aboard the ship
Browser
The maker names the film Alien as one of its two inspirations, and the threat is unknown…
Browser / PC / Mac / Linux / Android
16 games
As the days pass you meet extraterrestrials and alien ships among the signals and at the base
PC
The store introduces Charlotte's alien friends alongside a maggot cat and a certain Observer.
PC
Charlotte lives in the House with alien friends, among them Dr. Huxley, an alien surgeon.
PC
You play a small pink alien grub from space, the death slug of the first game, back on Earth to…
Browser
Set on the planet Alkia, 200 light years away, home to two alien species: the peaceful Alkians…
Browser / PC / Mac
A nasty alien came aboard on the ship's last salvage run, and the lone surviving pilot has to…
Browser / PC / Mac / Linux
A small pink slug from another planet lands on Earth and you guide it from prey to prey
Browser
The maker tags it Aliens, and a spidery creature hangs in a glowing amber tank aboard the ship
Browser
The crew's trouble begins with an artificial signal picked up by a rover on the planet, and…
Browser
Humanity's Armada wages war on the True Enemy, alien hordes designed to feel faceless and…
PC / Mac / Linux
Scores are those players and critics give on the stores and sites named; each game's page says where.