ExpansionOpus Magnum: De Re MetallicaMar 17, 2026Requires the base game
Release
Thursday, December 7, 2017
Critic score
92/100
Platform families
4
Editorial overview
Inside Opus Magnum
What it is
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. Open-Ended Puzzles - Compete against your friends and the world to build the simplest, fastest, and most compact solutions. Export animated GIFs to show them off. Steam Workshop - Make and share your own puzzles with full Steam Workshop integration and an easy-to-use puzzle editor. Solitaire Minigame - Take a break with Sigmar’s Garden, an original alchemy-based solitaire game.
The premise
“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.
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