Single-player games like IKO 39
Below are 16 single-player Steam games similar to IKO 39, 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 IKO 39 page.
Ranked picks
- 1

Human-Like
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
You've arrived onboard the Tenjin research station in deep space. Your mission: sabotage the station's core reactors without getting caught. Sounds easy? Think again. It watches every move you make. It learns from you. And it will kill you.
- 2

Event-D
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Adventure with IKO 39.
Sci-fi Visual Novel (Linear Story). A group of astronauts, scientists and robots is sent to space on a mission to investigate the disturbing disappearance of the first manned spaceship in its journey to Mars.
- 3

Settlement Zero
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
Settlement Zero is a first-person VR adventure using free movement, mixing open exploration with frantic combat as you defend yourself against autonomous spacecraft and robots.
- 4

Rebel Galaxy Outlaw
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
Out of cash, out of luck, out on the fringe. Juno Markev has a killer to tail, a debt to pay, and more trouble headed her way. Rebel Galaxy Outlaw takes place in a greasy, blue-collar world of outlaws, truckers, cops and thieves.
- 5

Regenesis Arcade Lite
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Adventure with IKO 39.
Regenesis Arcade is VR sci-fi shooter set in dystopian future ran by machines. Fighting the deadly killing machines will not be easy. Coming from all directions, covering both ground and air, each enemy requires different tactical approach.
- 6

The Last Cube
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Indie and Adventure with IKO 39.
Cube puzzler and an epic adventure. Stamp stickers to the sides of your cube to imbue each surface with unique powers, which are vital to solving puzzles and finding secrets.
- 7

Galactic Command Echo Squad SE
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
Galactic Command Echo Squad SE is a high-end and very challenging space/planetary combat game. It offers a thrilling campaign, instant action combat sessions as well as a sandbox mode allowing you to explore the game's universe while battling hostile Insurgent forces among others.
- 8

STAR-BOX: RPG Adventures in Space
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
STAR-BOX – RPG Adventures in Space!Strap on your gravity boots, power up your laser, and climb aboard your spaceship for a retro-styled, RPG-jaunt into the unknown!Travel an open-world, sandbox universe where you are the architect of your own story.
- 9

G.O.P.O.T.A
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
And you're a chubby guy?
- 10

Russian Village Simulator
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
This is a simulator of life in the Russian countryside, where the player will be engaged in the garden, picking mushrooms and berries, collect firewood, hunting and fishing, brew moonshine and much, much more.
- 11

G.O.P.O.T.A 2
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
Don't you keep the kid's word?!
- 12

DarkHouse
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Indie and Adventure with IKO 39.
This is not a typical corridor horror, but a game in a semi-open world with horror elements. You will have to perform a reverse ritual in a psychiatric clinic in order to banish the creepy Doctor back to Hell! Especially in the Nightmare mode, a real hardcore awaits you!
- 13

Unnatural: Benighted
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
Two friends investigate the disappearance of people and encounter unexplained phenomena.
- 14

Doge Simulator
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Action and Indie with IKO 39.
Doge wants to destroy! Doge wants this whole damn city to be destroyed! Smash the shops, cafes and even the damn palm trees! In our game you play as Doge, and you have to destroy, smash and break!
- 15

Reclusive
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Indie and Adventure with IKO 39.
Robert Livingston sails to a remote northern island to spend the last days of his life there and encounters unexplained phenomena and creatures.
- 16

Russian Soul Simulator
Single-player alternative to IKO 39 — playable solo, no multiplayer required. Shares Indie and Adventure with IKO 39.
Russian Soul Simulator is a meditative game that allows the player to look at the Russian nature and the surrounding world in realistic graphics. The game allows the hero to move freely through fields and forests, explore the surrounding terrain and interact with various objects.