Game Detail
App ID 558990 | Recorded April 25, 2026 at 01:20 AM
Indie, Simulation
Categories: Single-player, Steam Achievements, Steam Workshop, Steam Cloud, Steam Leaderboards, Includes level editor, Family Sharing
Release date: December 7, 2017
Developer/Publisher: Zachtronics / Zachtronics
Overwhelmingly Positive 97% · 4,185 reviews
Official Steam summary
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!
Current price
$19.99
All-time low
$9.99
12-month low
$9.99
Verdict
Wait
+100% above the all-time low.
119 helpful
I am not a computer programmer and I don't enjoy math. I have a degree in English Literature, which doesn't make me the obvious target audience for a...
46 helpful
One of the best games I've ever played. I spent countless hours optimizing and enjoyed every aspect of this game.