Single-player games like SEMU
Below are 10 single-player Steam games similar to SEMU, 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 SEMU page.
Ranked picks
- 1
Station Haven 3: What Remains
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
Following the largest cybernetic breach in history, classified documents have exposed an unclaimed Station drifting in Mars' orbit. The crew can't be reached, yet something else now resides there. Every three months, we send someone there. This time, you're the lucky winner.
- 2
Saturn Quest: The Loneliness Of Captain Navigator
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
The loneliest journey in a universe destroyed by a virus. Go where you can go to find what you can find. Solve puzzles, navigate mazes, and prepare for the final battle with the last functioning bio-ship in the universe.
- 3
Marzia lost in space
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
A short linear story about a girl who has gotten herself stuck in space! Will she survive in the end or will it be her end?
- 4
In Marte - The First Moon
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
In the game on Mars, Dom wakes up in a ship without knowing very well where he is, nor why he is there, much less where his body ended up. Help Dom find answers and have fun in this mind-blowing adventure.
- 5
Launch Director
Single-player alternative to SEMU — playable solo, no multiplayer required.
A space launch operations and automation simulator. Become the Launch Director for a commercial space transportation company. Can you configure these reusable rockets for a successful launch, ascent and landing?
- 6
ニコニコさん | Niconico-san
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
"Niconico-san" is a first-person, fast-paced horror game set in a Japanese residential area. Players must escape from the smiling man of urban legend, "Niconico-san," and find their way out of a terrifying otherworld.
- 7
EXTERMINATION SHIP
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
Try to survive on a deserted ship drifting in a foggy ocean. Complete daily tasks, keep your sanity, and uncover the secrets of the missing crew. But be careful-nothing is as simple as it seems. Are you ready for the challenge?
- 8
Modern Fear
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
A horror game and walking simulator
- 9
I'll be Brave, Tomorrow
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
A first-person narrative adventure game, telling the story of a sick child playing a 2D platformer. Made in partnership with Great Ormond Street Hospital Charity!
- 10
Rhythm Reunion - Indie Dating Sim Visual Novel
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie and Free To Play with SEMU.
The band is getting back together! Haven't you heard?! 'Summer Vacation' is reuniting for one last gig! Take part in this artistically diverse visual novel as you explore the new lives of each of the old band members, all whilst you convince each of them to return to the lime light!