Free downloadable PC games
Game details
Opus Magnum game

Opus Magnum

Genre: puzzle / simulation
Pin it


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 and build machines that carry out alchemical processes using a variety of components
  • Compete against your friends and the world
  • Intrigues and dark plots swirl around the city’s ancient Houses
  • Take a break with Sigmar’s Garden, an original alchemy-based solitaire game


Opus Magnum game screenshot Opus Magnum game screenshot Opus Magnum game screenshot Opus Magnum game screenshot

System requirements

  • Windows 7/8/10
  • Processor 2 GHz
  • 4 GB RAM
  • DirectX 10
  • 600 MB free storage space