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Opus Magnum

in library

4.6/5

( 48 Reviews )

4.6

48 Reviews

English & 5 more
19.9919.99
Why buy on GOG.COM?
DRM FREE. No activation or online connection required to play.
Safety and satisfaction. Stellar support 24/7 and full refunds up to 30 days.
Opus Magnum
Description
“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...
User reviews

4.6/5

( 48 Reviews )

4.6

48 Reviews

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Product details
2017, Zachtronics, ...
System requirements
Windows 7 / 8 / 10, 2.0 GHz, 4 GB RAM, 1366 x 768, Version 10, 600 MB available space...
Time to beat
15.5 hMain
26 h Main + Sides
40 h Completionist
21 h All Styles
Description
“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.

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…
System requirements
Minimum system requirements:
Why buy on GOG.COM?
DRM FREE. No activation or online connection required to play.
Safety and satisfaction. Stellar support 24/7 and full refunds up to 30 days.
Time to beat
15.5 hMain
26 h Main + Sides
40 h Completionist
21 h All Styles
Game details
Works on:
Windows (7, 8, 10, 11), Linux (Ubuntu 14.04, Ubuntu 16.04, Ubuntu 18.04), Mac OS X (10.9+)
Release date:
{{'2017-12-07T00:00:00+02:00' | date: 'longDate' : ' +0200 ' }}
Size:
432 MB

Game features

Languages
English
audio
text
Deutsch
audio
text
français
audio
text
русский
audio
text
中文(简体)
audio
text
日本語
audio
text
Buy series (5)
Buy all games in the series. If you already own a game from the series, it won’t be added to your cart.
-20%76.9561.55
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User reviews

Posted on: July 29, 2025

Skitty1855

Verified owner

Games: 41 Reviews: 8

Fun, but frustrating

Here it is 2025, and I'm still thinking about this game from 2017. That's how catchy the puzzle loop is. Even after you solve the puzzle, you can still tinker with ways to make it smaller, faster, or cheaper. Frustrating- I'm very bad at spatial reasoning, so I can't imagine how the machine will work, I have to run it and watch. The game could make that a bit easier.


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Posted on: August 11, 2025

dd31879

Verified owner

Games: 140 Reviews: 4

Chill Puzzle Game

Fun game where you try to solve the puzzles with various mechanical things. Game doesn't try to rush you or make you be ultra-efficiant to complete the tasks.


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Posted on: May 8, 2018

neqa

Verified owner

Games: Reviews: 19

Nice Spacechem sequel

Plot is a bit more annoying (not the actual plot -- the existance of a plot; in SC I clicked through it, and still don't know what it was about). The game itself is simpler (no assembly line, fewer elements -- but more complex transformations). Also, lacks 'educational' part. Individual puzzles are more complex than individual reactors. But they're way simpler than entire assembly line. Also, best part of the game is Sigmar's Garden (definitely waiting for Sigmar's Garden mobile).


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Posted on: June 13, 2025

KrystalCloudss

Games: 1 Reviews: 1

autism simulator

i made a forse factory, i feel so smart


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