Opus Magnum

Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!

Opus Magnum is a puzzle, programming and indie game developed and published by Zachtronics.
Released on December 07th 2017 is available on Windows, MacOS and Linux in 12 languages: English, French, German, Japanese, Russian, Simplified Chinese, Spanish - Latin America, Korean, Turkish, Ukrainian, Portuguese - Portugal and Czech.

It has received 5,831 reviews of which 5,683 were positive and 148 were negative resulting in an impressive rating of 9.4 out of 10. 😍

The game is currently priced at 19.50€ on Steam.

The Steam community has classified Opus Magnum into these genres:

Puzzle Programming Indie Automation Simulation Logic Singleplayer Great Soundtrack Steampunk Building Difficult Sandbox 2D Hex Grid Casual

Media & Screenshots

Get an in-depth look at Opus Magnum through various videos and screenshots.

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Requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows

OS *: Windows Vista / 7 / 8 / 10
Processor: 2.0 GHz
Memory: 4 GB RAM
Graphics: 1366 x 768
DirectX: Version 11
Storage: 600 MB available space

MacOS

OS: macOS 10.9+
Processor: 2.0 GHz
Memory: 4 GB RAM
Graphics: 1366 x 768
Storage: 600 MB available space

Linux

OS: Ubuntu 16.04+, SteamOS
Processor: 2.0 GHz
Memory: 4 GB RAM
Graphics: OpenGL 3.0, 1366 x 768
Storage: 600 MB available space

Reviews

Explore reviews from Steam users sharing their experiences and what they love about the game.

Oct. 2024

One of the greatest puzzle games of all time. I played tons of "The Codex of Alchemical Engineering" and "The Codex of ALchemical Engineering: Magnum Opus Challenge" (the flash game versions of this) back in the day There are some aspects of the flash game that I prefer: tracks and unlimited instructions on each arm make just solving a lot of puzzles too easy, and the automatic padding of all instruction sequences to be the same length is kind of annoying That said, tracks and unlimited instructions really shine in harder puzzles, or if you try to go for a lowest cost challenge. Each puzzle has almost unlimited replay value if you try to minimize cost, cycle etc. I managed to solve Refined Bronze with one fixed length arm and 4 tracks, and I thought that was probably optimal, but it's been done with one fixed arm and no track! Also, the full version of the game uses a hex grid instead of the square grid from the flash game, which is a big improvement The production alchemy puzzles are my favorite, because the space constraints make them interesting even if you don't go for an optimized solution. It's also fun to try to do them with only one chamber. I wish there were puzzles with some other mandatory restrictions like limited instructions The journal also includes 45 more puzzles, which are generally harder than the story puzzles. There is even a new element (quintessence), a new version of sigmar's garden including that element, and some tougher production alchemy puzzles. I really like the out of the box production alchemy puzzles, ie the ones where you just have to disassemble and reassemble the same molecule, or the one where there are no bonders or unbonders The music is really good, and the story is cute, it's obviously just flavor and I like the journal puzzles more, but I'm glad the story was added A couple control tips: hold "1" to display "ghost atoms" (where all the molucules were the last time you stopped the simulation), hold "3" and click an instruction to fast forward to it (this is insanely useful), ctrl + click + drag to COPY selected instructions or even parts (you can select multiple things with click + drag, and add to a selection using shift + click (+ drag)), pan by right click + drag (you can also shift + scroll to pan the instruction pane), and finally you can change controls so that the keyboard shortcuts place an instruction on the selected track instead of needing to click too

March 2024

A trully unique and one of a kind puzle game. Bonus points for being able to approach the solutions from multiple angles, depending on your own preference: cheapest? fastest? most visually appealing? most geometrical? most complex and arcane? Everything goes. As a side effect, it teaches you about programming: if you can solve these puzzles, you made first steps into the world of alogrithms!

March 2024

Fantastic puzzle game. I appreciate it shows you how other players did, but doesn't tie efficiency to any of the achievements. As long as you solve the puzzle, the game is happy with you. If you want to do better on cost, cycles, or area you can and the game is happy to allow you to compare solutions, but it isn't tied to progress.

March 2024

The Opus Magnum campaign felt a lot easier than most Zachtronics games. I realized that it was only easy because you have infinite space to build which is typically not the case in their other games. Once you add space limitation, Opus Magnum offers some serious challenge. And yes, the game does include space limiting puzzles, just not as part of the main campaign. The Steam Workshop also offers a plethora of head pounding puzzles if you want to be humbled by how "easy" the game really isn't.

Feb. 2024

There is nothing more satisfying than making the finishing touches on your machine, and then sitting back, and watching it work perfectly. And there is nothing less satisfying than thinking your machine is running like the former, and it failing halfway through.

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Last Updates

Steam data	18 November 2024 12:03
SteamSpy data	19 January 2025 19:27
Steam price	22 January 2025 20:42
Steam reviews	22 January 2025 13:56

19.50€

9.4

5,683

148

Online players

Developer

Zachtronics

Publisher

Zachtronics

Release 07 Dec 2017

Platforms