Tonight's update is a complete overhaul of how repeating products are detected, so that you must always build 6 "repetition units", where one repetition unit is shown in the products tray to the left. The requirement that you build the "bonds to the right" has been removed, although you may need to build extra product if your repetition units don't align with the repetition units in the puzzle definition. In general this change should improve your cycle scores on repeating product puzzle across the board, but it's possible that some old top scores are no longer possible, requiring them to be purged from the histograms and/or leaderboards. We'll see. If you're a repeating product expert, please throw your solutions at the new implementation and let me know if you see anything weird. The best way to do this is to email me directly (zach@zachtronics.com) and attach any supporting puzzles and/or solutions that illustrate what you're seeing. It's also possible that this change allows invalid products to register as valid, so if you see any of those please let me know! Also, and totally unrelated, this update also changes the fast-forward key from Alt to 3 on Linux, because apparently Linux users can't click on things while holding the Alt key.

[ 2017-11-30 05:19:34 CET ] [ Original post ]

“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.



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 Machines - Design and build machines that carry out alchemical processes using a variety of components including programmable arms, customizable tracks, and more esoteric devices like Van Berlo’s wheel and the Glyph of Animismus.

Open-Ended Puzzles - Compete against your friends and the world to build the simplest, fastest, and most compact solutions to the game’s challenges. Export animated GIFs of your elegant designs to show them off.

Steam Workshop - Make and share your own puzzles with full Steam Workshop integration and an easy-to-use puzzle editor. Play the top user-submitted puzzles in the prestigious Journal of Alchemical Engineering, curated by Zachtronics!

Rich Story - Intrigues and dark plots swirl around the city’s ancient Houses. Alchemists, who hold the power to create almost anything known to science, are highly sought— and highly dangerous.

Solitaire Minigame - Alchemical engineering takes focus and concentration. Take a break with Sigmar’s Garden, an original alchemy-based solitaire game. Every game is winnable, but not every game will be won…