Single-player games like Opus Magnum
Below are 14 single-player Steam games similar to Opus Magnum, 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 Opus Magnum page.
Ranked picks
- 1
SHENZHEN I/O
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
BUILD CIRCUITS. WRITE CODE. RTFM.
- 2
Infinifactory
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
Infinifactory is a sandbox puzzle game by Zachtronics, the creators of SpaceChem and Infiniminer. Build factories that assemble products for your alien overlords, and try not to die in the process.
- 3
EXAPUNKS
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
The year is 1997. You used to be a hacker, but now you have the phage. You made a deal: one hack, one dose. There’s nothing left to lose… except your life.
- 4
SpaceChem
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
Zachtronics is back with an ambitious new design-based puzzle game. Take on the role of a Reactor Engineer working for SpaceChem, the leading chemical synthesizer for frontier colonies. Construct elaborate factories to transform raw materials into valuable chemical products!
- 5
TIS-100
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
TIS-100 is an open-ended programming game by Zachtronics, the creators of SpaceChem and Infinifactory, in which you rewrite corrupted code segments to repair the TIS-100 and unlock its secrets. It’s the assembly language programming game you never asked for!
- 6
Kaizen: A Factory Story
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Simulation with Opus Magnum.
Kaizen is an open-ended puzzle automation game from the original Zachtronics team, set in 1980s Japan. Design, build, and optimize production lines to create iconic products, like calculators, camcorders, and arcade machines.
- 7
Upalu Mundi
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
Upalu Mundi is a puzzle game set in a dwarven world at the dawn of railways. Lay tracks, build stations and set switches to keep goods moving and profits soaring. Read the news to see how the public reacts as you shape the future of transportation!
- 8
Comet 64
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
Comet 64 is a programming puzzle game. The year is 1984. All you got is a Comet 64 home computer and the operator's manual it came with.
- 9
The Zachtronics Solitaire Collection
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie with Opus Magnum.
The Zachtronics Solitaire Collection is here! Inside you will find all seven Zachtronics solitaire games, updated with new 4K graphics, plus one brand new Tarot-themed solitaire variant only available here.
- 10
Factorio
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 11
MOLEK-SYNTEZ
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
Use the MOLEK-SYNTEZ to create small molecules with various pharmacological effects from the comfort of your small Romanian apartment.
- 12
Last Call BBS
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie and Simulation with Opus Magnum.
Boot up your Z5 Powerlance and dial into Last Call BBS, the last game from Zachtronics! The Barkeep’s loaded up his retro computer with a full set of puzzle games for you to download and play. No need to worry about copy protection, they’re all fully cracked and ready to enjoy!
- 13
Baba Is You
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie with Opus Magnum.
Baba Is You is a puzzle game where the rules you have to follow are present as blocks you can interact with. By manipulating them, you can change how the game works, repurpose things you find in the levels and cause surprising interactions!
- 14
Eliza
Single-player alternative to Opus Magnum — playable solo, no multiplayer required. Shares Indie with Opus Magnum.
Eliza is a visual novel about an AI counseling program, the people who develop it, and the people who use it. Follow Evelyn Ishino-Aubrey as she reconnects with people from her past, gets to know the people of Seattle who use Eliza for counseling, and decides the course of her future.