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“It is not an exaggeration to say that without alchemical engineering, civilization would not exist.”

Hailed as the most promising alchemist of his generation, Anataeus Vaya has just accepted a position as Head Alchemist of House Van Tassen, the oldest and richest of the city’s ancient Houses. But dangers lurk behind the family’s opulent facade, and alchemy alone may not solve every problem.


Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, TIS-100, and SHENZHEN I/O. Master the intricate, physical machinery of the transmutation engine— the alchemical engineer’s most advanced tool— and use it to create vital remedies, precious gemstones, deadly weapons, and more.

Design Machines - Design and build machines that carry out alchemical processes using a variety of components including programmable arms, customizable tracks, and more esoteric devices like Van Berlo’s wheel and the Glyph of Animismus.

Open-Ended Puzzles - Compete against your friends and the world to build the simplest, fastest, and most compact solutions to the game’s challenges. Export animated GIFs of your elegant designs to show them off.

Steam Workshop - Make and share your own puzzles with full Steam Workshop integration and an easy-to-use puzzle editor. Play the top user-submitted puzzles in the prestigious Journal of Alchemical Engineering, curated by Zachtronics!

Rich Story - Intrigues and dark plots swirl around the city’s ancient Houses. Alchemists, who hold the power to create almost anything known to science, are highly sought— and highly dangerous.

Solitaire Minigame - Alchemical engineering takes focus and concentration. Take a break with Sigmar’s Garden, an original alchemy-based solitaire game. Every game is winnable, but not every game will be won…

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Twitter

Latest tweets from @zachtronics

There's less than one week left in the IndieGoGo campaign for my new card game from my new studio! In case you hav… T.co

Mar 26 2023

I have a new game coming out! The Lucky Seven is a (physical!) hybrid solitaire-tactics game I designed, with amaz… T.co

Mar 2 2023

RT @KalinarmDev: my new game Linkito has a steam page \o/ If you like open-ended/sandbox puzzle , or just want to help me 🥰, you c… T.co

Feb 22 2023

Solitaire stats! Not sure why I didn't crunch these sooner. It's reassuring to see that the largest bucket is "peo… T.co

Feb 11 2023

RT @matthewseiji: List of fake 90s hit singles that @zachtronics and I made up for the radio station puzzle in EXAPUNKS T.co

Jan 21 2023