Single-player games like Mission: Aliens
Below are 16 single-player Steam games similar to Mission: Aliens, 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 Mission: Aliens page.
Ranked picks
- 1

Galactic Sanctuaries
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action with Mission: Aliens.
Protect the lighthouse, destroy nests and complete tasks.
- 2

Unknown Signal: Invasion
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
Unknown Signal: Invasion is a continuation of the exciting sci-fi game. This time you have to go to an unknown planet to investigate a new mysterious signal coming from an unknown source.
- 3

Deep Space
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
You are entrusted with the role of one of the elite captains, put on a high-tech mech suit suitable for travel into space and go on an exciting journey.
- 4

Metro Awakening
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
Metro Awakening is a story-driven first person adventure built for VR that blends atmospheric exploration, stealth and combat in the most immersive Metro experience yet. Don your gas mask, brave the crippling radiation and venture into the depths of the Metro where threats haunt your every step.
- 5

Humanity Lost
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
Will you save humanity? You are on a mission to find a new planet for humans to inhabit. In this story driven FPS space opera you will explore open world planets, find weapons, upgrade your character, and befriend alien species.
- 6

5 nights at Timokha 4: School
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
Continuation of the legendary saga about the naughty Timokha and his delicious pie!
- 7

PolyClassic: Wild
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
This game is an action game that combines elements of the classic retro shooter and low poly styling. The player's task is to destroy all enemies that come across on the way.
- 8

The End of Dyeus
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
Go in a quest for Dyeus in a primitive and cryptic open world ! Face mysterious assailants in intense and fast paced sword fights, and survive against a carnivorous fauna. Will you uncover the truth about Dyeus?
- 9

The Guard
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
You are on the night shift at the mall. While you were taking your post, your partner went missing. All the time you hear some kind of noise. You need to find out their origin and find your partner. As you pass, you will need to find the keys and open locked rooms.
- 10

The Witch's House
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action with Mission: Aliens.
There is an old house on the edge of a small town. All the locals have always avoided it, as strange and mysterious events constantly happen there. This time, what happened in this house made the whole city shudder with fear.
- 11

Ghost Village
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Adventure with Mission: Aliens.
My grandmother was originally from the village, but after the environmental disaster that occurred 30 years ago near their settlement, she moved to our city and lived with us.
- 12

DrugRunner
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required.
Drug Runner is a 3D game in which you have to run along the road and dodge obstacles, on the way collecting bonuses and coins that give you points. If you can jump over the barrier by pressing the "space bar".
- 13

Battle Robots
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required.
Do you like fast games with the grinding of metal? Try to take part in fights with robots. Your task is to come out of the battle victorious, deftly inflicting crushing blows on your opponent. Upgrade your armor, and then head to the arena to fight. Start playing now!
- 14

Sleep
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required. Shares Action and Adventure with Mission: Aliens.
Nastya, she is 18 years old. Every day she draws images of the monsters that come to her and describes them. And every night, Nastya has a dream where she fights her monsters. And with each dream, you have to get out of the dream.
- 15

307 Racing
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required.
Circuit racing is the common name for several types of car races, held on special tracks with hard surfaces. The main feature of such competitions is that the track has a closed form (ring).
- 16

Metal Detecting Simulator
Single-player alternative to Mission: Aliens — playable solo, no multiplayer required.
2D platformer with a view from the top. In the game you have to buy equipment to search for various items. Metal detectors, shovels, will help you in this. You come to the new land, you need to buy land and start searching for gold and coins, as well you will come across junk.