Single-player games like MEGA
Below are 13 single-player Steam games similar to MEGA, 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 MEGA page.
Ranked picks
- 1

Metro Exodus
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action with MEGA.
Flee the shattered ruins of the Moscow Metro and embark on an epic, continent-spanning journey across the post-apocalyptic Russian wilderness. Explore vast, non-linear levels, lose yourself in an immersive, sandbox survival experience, and follow a thrilling story-line that spans an entire year in the greatest Metro adventure yet.
- 2

Metro: Last Light Redux
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action with MEGA.
It is the year 2034. Beneath the ruins of post-apocalyptic Moscow, in the tunnels of the Metro, the remnants of mankind are besieged by deadly threats from outside – and within. Mutants stalk the catacombs beneath the desolate surface, and hunt amidst the poisoned skies above.
- 3

Outlast
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
Hell is an experiment you can't survive in Outlast, a first-person survival horror game developed by veterans of some of the biggest game franchises in history. As investigative journalist Miles Upshur, explore Mount Massive Asylum and try to survive long enough to discover its terrible secret... if you dare.
- 4

Syndrome
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Adventure with MEGA.
Syndrome, a sci-fi survival horror game that places you in a living hell inside a doomed starship. Find out what happened to your lost crew. Run. Hide. Fight. Survive.
- 5

Amnesia: The Dark Descent
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
Amnesia: The Dark Descent, a first person survival horror. A game about immersion, discovery and living through a nightmare. An experience that will chill you to the core.
- 6

Penumbra Overture
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
Penumbra: Overture is a first person survival horror game, emphasizing on survival and problem solving instead of mindless violence and gore.
- 7

ROUTINE
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
ROUTINE is a First Person Sci-Fi Horror set on an abandoned lunar base designed around an 80s vision of the future. Explore and investigate your surroundings as you survive against unknown threats.
- 8

I Am Alive
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Adventure with MEGA.
I Am Alive casts the player as a lone survivor in a believable, dark and insecure post-apocalyptic world.
- 9

Climber
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
This is a little adventure in the depths of a mysterious cave. Try on the role of a rescuer and try to save the lives of a team of missing cavers as quickly as possible. You will need concentration, discipline and strong hands, because the owners of these depths do not like uninvited guests.
- 10

On the other side
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
Take on the role of a modern exorcist in this realistic ghost hunting horror. You have to fulfill contracts related to paranormal phenomena. Your main weapon is an old camera that can shoot what is not visible to the human eye.
- 11

Phenom
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
In the midst of an outbreak of a mysterious virus that turns people into crazed zombies, James's wife has disappeared and now he has to find her and survive in a zombie apocalypse with moving around the grid using improvised means, environment and logic.
- 12

Mannequin machine
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
"Mannequin machine" is a first-person psychological horror game with camera effects that tells the story of working in a mannequin factory. Beware of the evil at the heart of the plant, it drives its victims crazy
- 13

Deep Hell
Single-player alternative to MEGA — playable solo, no multiplayer required. Shares Action and Indie with MEGA.
Immerse yourself in a dark dense forest in which terrible inexplicable things happen. You will have to find the missing people's belongings by following the coordinates left in the notes of the missing brother. Someone or something lives in the forest and changes everyone who goes there.