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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

RT @biggiemac42: I've decided I am starting a blog, first post is about Opus Magnum! Btm.qva.mybluehost.me

11hours ago

Me too! Store.steampowered.com It's kind of like my old "Silicon Foundry" game except it's about spaceships and… T.co

Oct 20 2021

We've still got a couple copies of HACK*MATCH for the NES left in stock on the Zachtronics pop-up store! Also, iro… T.co

Oct 10 2021

In 2010 I posted on the Zachtronics (Industries!) website about a new Flash game called Manufactoria that scratched… T.co

Oct 10 2021

Physical cartridges of HACK*MATCH for the NES are back in stock! Only 20 copies! Get one on the Zachtronics pop-up… T.co

Sep 30 2021

RT @matthewseiji: One time I showed @zachtronics a puzzle solution I came up with and Zach said “can you think of another way to solv… T.co

Sep 15 2021