Single-player games like MORTU
Below are 12 single-player Steam games similar to MORTU, 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 MORTU page.
Ranked picks
- 1
The Forest
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.
- 2
RimWorld
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 3
Euro Truck Simulator 2
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
Travel across Europe as king of the road, a trucker who delivers important cargo across impressive distances! With dozens of cities to explore, your endurance, skill and speed will all be pushed to their limits.
- 4
Don't Starve Together
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie with MORTU.
Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve.
- 5
Kerbal Space Program
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
- 6
Assetto Corsa
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
Assetto Corsa v1.16 introduces the new "Laguna Seca" laser-scanned track, 7 new cars among which the eagerly awaited Alfa Romeo Giulia Quadrifoglio! Check the changelog for further info!
- 7
Mount & Blade II: Bannerlord
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
A strategy/action RPG. Create a character, engage in diplomacy, craft, trade and conquer new lands in a vast medieval sandbox. Raise armies to lead into battle and command and fight alongside your troops in massive real-time battles using a deep but intuitive skill-based combat system.
- 8
This War of Mine
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
In This War Of Mine you do not play as an elite soldier, rather a group of civilians trying to survive in a besieged city; struggling with lack of food, medicine and constant danger from snipers and hostile scavengers. The game provides an experience of war seen from an entirely new angle.
- 9
Last Shift
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
Mark Thompson accepts a late-night shift in a mysterious office, but what seemed like a routine night quickly turns into a nightmare.
- 10
Who am I?
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
A man named Mark, who struggles to make ends meet, receives a letter informing him that his aunt has passed away. Despite their troubled past, Mark decides to investigate what happened, hoping to uncover the truth and perhaps find a chance for a better life.
- 11
Unknown Host
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
It's a short indie horror game where we step into the shoes of Alex, a student who, in search of more comfort, rents an apartment in the city that, at first glance, seems pretty decent — but upon arrival, he realizes something is not right.
- 12
C.U.T.S
Single-player alternative to MORTU — playable solo, no multiplayer required. Shares Indie and Simulation with MORTU.
It’s an indie horror game where a man named Ethan, passionate about collecting VHS tapes, receives a box full of them from a friend. But as he starts watching, he realizes he’s witnessing something deeply disturbing and unsettling.