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Opus Magnum

Opus Magnum

Puzzle, Simulator, Indie · Linux · PC · Mac · XONE · 2017 · ≈ 27h to beat

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… Summary: IGDB

Mind Score

Fair to the player

Age · PEGI 12

Respect 92
Nourish 56
Stimulation gentle
Has an endingStop anytime

What it exercises

Problem solving
  • Steam tag “Puzzle” (184 votes)
  • Steam tag “Logic” (81 votes)
Creativity
  • Steam tag “Building” (29 votes)
  • From a player review
Perseverance: very hard, but fair
  • Steam tag “Difficult” (28 votes)
  • Hard but fair: 97% positive reviews

High confidence · 28 Sept 2026 · Rules-based estimate from the Steam store, player reviews and PEGI/ESRB descriptors. Not a substitute for the official rating or your own judgement. Tap a label to see the evidence.