Single-player games like Asteroid M-12
Below are 9 single-player Steam games similar to Asteroid M-12, 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 Asteroid M-12 page.
Ranked picks
- 1

Kill The Shadow
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Adventure with Asteroid M-12.
Kill the Shadow is a detective game with multiple endings, featuring 2.5D pixel art and semi-open exploration and investigation. Play as Lucas, a former police officer, alongside a mysterious Shadow who can see the “past.” Remember—every choice you make will change the fate of countless characters!
- 2

Escape From Mystwood Mansion
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Adventure with Asteroid M-12.
In this first-person puzzle escape room game, you are trapped in the mysterious Mystwood mansion. Explore the mansion and find hidden compartments while solving puzzles and deciphering codes to find a way out. Will you escape or linger to uncover the mansion's final secret?
- 3

Strange Horticulture
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Adventure with Asteroid M-12.
Strange Horticulture is an occult puzzle game in which you play as the proprietor of a local plant store. Find and identify new plants, pet your cat, speak to a coven, or join a cult. Use your collection of powerful plants to influence the story and unravel Undermere’s dark mysteries.
- 4

Pentiment
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Adventure and Casual with Asteroid M-12.
Step into a living illustrated world in a time when Europe is at a crossroads of great religious and political change. Walk in the footsteps of Andreas Maler, a master artist who finds himself in the middle of murders, scandals, and intrigue in the Bavarian Alps.
- 5

流言侦探
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Adventure with Asteroid M-12.
《流言侦探》是一款诡异,烧脑,悬疑推理剧情游戏,在游戏的体验中,玩家自主找出线索,并利用线索,和角色对话后推进故事。严格的推理玩法,玩家将扮演一个神秘的联络者,玩家的选择将影响了解故事的不同侧面。通过和诸多角色的聊天推理出事件一层层真相,找出隐藏的凶手。
- 6

Tron: Identity
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Adventure with Asteroid M-12.
Something has been taken. Enter a new Grid and forge alliances via visual novel gameplay, uncovering truths through Identity Disc puzzles. Make critical decisions and plot your own course in a world without a creator.
- 7

Eschaton
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Adventure with Asteroid M-12.
Eschaton is a short, experimental, surreal first-person exploration game. Explore the 'aftermath' of a cult ritual in the grounds of a manor in the remote and picturesque Scottish Highlands.
- 8

Strange Antiquities
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Adventure with Asteroid M-12.
Become the custodian of a store dealing in occult antiquities. Explore the quaint and gloomy town of Undermere, where strange goings-on and dark mysteries abound. Find and identify arcane artefacts, use your collection to aid the townsfolk with their unusual problems — and remember to pet your cat!
- 9

Firefly Haven
Single-player alternative to Asteroid M-12 — playable solo, no multiplayer required. Shares Indie and Casual with Asteroid M-12.
Firefly Haven is an incremental, chill and short cozy game about catching bugs, collecting trophies, traveling to new locations and achieving greatness!