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
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.
- 2
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?
- 3
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.
- 4
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.
- 5
Modern Fear
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
A horror game and walking simulator
- 6
Abode: Definitive Edition
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
Abode: Definitive Edition is the updated edition of Abode, it is a short walking simulator horror game, you are stuck in a loop going through a small house, when horror starts happening around you.
- 7
CONCRETE
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
CONCRETE is an atmospheric first-person exploration game presented with modernised retro 3D visuals. Explore large distinct environments packed with hidden secrets, collectables, puzzles, and physics objects to interact with.
- 8
Flight 666
Single-player alternative to SEMU — playable solo, no multiplayer required. Shares Indie with SEMU.
Solve the mystery before takeoff: Identify the impostor amid Halloween-costumed passengers in this turbulent flight for your life. Are you crazy or did you really see something that was 'not real'?
- 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!