

Opus Magnum
Zachtronics · December 7, 2017 · Puzzle, Programming, Automation, Indie, Simulation
Buy the Opus Magnum key for Steam from Driffle INC at $9.63 — the cheapest of 10 stores we compare.
Where to buy Opus Magnum — official stores
Cheapest Opus Magnum keys — keyshops
Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.
Some store links are affiliate links — playze may earn a commission at no extra cost to you. It never changes the price you pay, and the cheapest confirmed price is always shown in the Best price box above.
Opus Magnum price by region
Opus Magnum costs $5.75 in Georgia (USD), £7.29 in the United Kingdom, €8.60 in Europe (EUR), $9.63 in the United States, CA$22.49 in Canada, NZ$24.79 in New Zealand, A$26.95 in Australia, zł37.75 in Poland and R$50.49 in Brazil right now.
| Region | Best price | Official store | Key shop | Stores |
|---|---|---|---|---|
| $5.75 | $5.75 | $9.63 | 9 | |
| £7.29 −46% | £13.49 | £7.29 | 8 | |
| €8.60 −40% | €14.25 | €8.60 | 9 | |
| $9.63 −52% | $19.99 | $9.63 | 10 | |
| CA$22.49 | CA$22.49 | — | 4 | |
| NZ$24.79 | NZ$24.79 | — | 3 | |
| A$26.95 | A$26.95 | — | 4 | |
| zł37.75 | zł37.75 | zł38.50 | 5 | |
| R$50.49 | R$50.49 | R$54.59 | 4 |
Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.
Screenshots
About Opus Magnum
Build elaborate alchemical machines using programmable arms, tracks, and mystical components to transmute elements and solve open-ended puzzles in this physics-based engineering game from Zachtronics. Compete globally to find the simplest, fastest, and most compact solutions, create custom puzzles for Steam Workshop, and uncover dark conspiracies within a rich narrative of ancient Houses and dangerous alchemists.
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 — game info
- Platforms
- Windows, macOS, Linux / SteamOS
- Steam Deck
- Playable
- Player modes
- Single-player
- PC Game Pass
- Not included
Opus Magnum in the rankings
DLC & expansions
🎁 Complete the collection
Base game + 1 of 1 DLC at today's best prices.
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Opus Magnum is a puzzle game where players manipulate alchemical reagents and compounds to solve increasingly complex challenges, and most players find the core experience of designing and watching their solutions execute to be deeply satisfying. The game excels at delivering that rewarding "aha" moment when a puzzle clicks, though optimization challenges can frustrate some players who struggle with later levels or the urge to perfect cycle counts.
Peak1 found this helpful
great game, watching your finished solution is incredibly fun1 found this helpful
epic
Extremely satisfying to solve a puzzle. Not as hard as I thought it would be. Highly recommend.
>boot up game >pull up unfinished solution >bang my head against a wall >ragequit after 2 hours of trying to optimize cycles >repeat love this game
[h1] If you know Zachtronics, here you are going to larp as an alchemy erudit [/h1] If you are not familiarized with Zachtronics games here is what you can expect: Zachtronics has a theme that repeats in all their games, that being puzzles based on programming or divide and conquer with some kind of flavor for you to larp and get immersed as a fake technicist on a usually complex system. In this case as I said above, you will be roleplaying as an scholar of alchemy that works for a family. This is game is a cellular automata kind of game where each cell has a specific behaviour, you will given starting cells (Reagents) that you will need to manipulate with other cells ("Mechanisms" that will move the compound and "Glyphs" that will bind, unbind or mutate the reagents or compounds) to form a particular "Product". The problem solving comes in space awareness, programming mechanisms and your desire to be efficient in time, space and cost. Your solution is compared against the normal distribution so you can know how bad or good you did. If you like this kind of game, check for other Zachtronic games like: Shenzhen I/O, where you can do more tangible things with electronics; TIS-100…
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