Single-player games like First Moon of Mercury
Below are 11 single-player Steam games similar to First Moon of Mercury, 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 First Moon of Mercury page.
Ranked picks
- 1
Through The Fragmentation
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
Atmospheric first person adventure game focusing on immersion and exploration. Meet strange characters, discover secrets and try to unfold the mystery of the Fragmentation.
- 2
Orten Was The Case
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
Orten Was The Case - A free movement puzzle/adventure game where you play as a youngster stuck in a time loop with the simple task of saving the world from literal destruction.
- 3
Vessels
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
Quarantined inside an airlock. No memories. No way out. The remaining crew thinks there’s something wrong with you, but the Voice says it’ll help you escape. Navigate volatile conversations & unravel mysteries in this narrative adventure about trust, self-destruction, & shifting identities.
- 4
Lightracer Spark
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Strategy and Indie with First Moon of Mercury.
Lightracer Spark is a Sci-Fi Narrative game. You are an amender from a high civilization, descending to various extraterrestrial worlds. Guide living beings to prosperity, or nip a spark in the bud. Accumulate strength through choices and strategies to grasp the rise and fall of all civilizations.
- 5
DAEMON MASQUERADE
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
An anime-inspired supernatural detective game. Uncover the identities and powers of your adversaries using a conspiracy board full of evidence.
- 6
Tron: Identity
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
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
Return to Grace
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required.
A daring space archaeologist has just unearthed the ancient resting place of a long lost A.I. god known as Grace. Adventure with various fractured A.I. personalities as you uncover the great mystery of why she was shut down all those years ago.
- 8
![Event[0] — Steam game cover](https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/470260/header.jpg?t=1774622671)
Event[0]
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
Event[0] is a sci-fi narrative exploration game where you build a relationship with a lonely spaceship computer to get home to Earth.
- 9
Terrorarium
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
Terrorarium is a 3D puzzle platformer about wanton destruction & adorable gore across a galaxy of community-designed murder gardens. Conquer dangerous alien worlds as a feisty granny with a chip on her shoulder and an army of cute but expendable walking mushrooms.
- 10
Flow Weaver
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required. Shares Indie with First Moon of Mercury.
You are trapped. Bound by magic by unknown captors. But you are a Flow Weaver and can move between dimensions. Travel amongst them, learn new spells, and uncover the secrets of this strange world to orchestrate your escape.
- 11
Broken Spectre
Single-player alternative to First Moon of Mercury — playable solo, no multiplayer required.
25 years ago your father climbed the mountain and never came back. Now he’s calling for you. Experience the award winning, narrative eldritch horror game like you haven’t before in the Director’s Cut. Can you unravel the mystery of your father who disappeared in the remote wilderness years ago?