ModsOpus Magnum
Opus Magnum mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
653 mods, most downloaded first · newest update 22 Jul 2026
- BENZENE120 downloadsupdated 3 mo ago
- TOXIC METALLURGYby zorflaxIn the early days alchemy was outlawed in most regions, and whatever alchemy was practiced was done so under utmost secrecy. By necessity, their production chambers needed to be small enough to be hidden from plain sight. These production chambers are uncomfortably small by today's standards. Com...119 downloadsupdated 6 y ago
- 入れ替えの初級問題 Elementary puzzles（Swap position）by 76561199022313427エディターがあるということで試しに作ってみた初級編！ 位置交換を用いる基本的なパズルです！ This puzzle was made for trial. This is a basic puzzle using Swap position.119 downloadsupdated 7 y ago
- BERLO WITHOUT BERLOby Mitch RocksMaking the Van Berlo Wheel like Van Berlo did! Can you puzzle it out? Or is Van wiser than you are?118 downloadsupdated 8 y ago
- SAFE MORS DISPOSALby GemohandyEven when faced with potential immortality, the average person will ignore potential long-term consequences. One of the foundational principles of ancient alchemical engineering is that atoms can neither be created nor destroyed. Thus, any atoms you pull into your alchemical engine must necessari...117 downloadsupdated 8 y ago
- Steamy Wavesby WhebonThis is my first Opus Magnum level. I hope you like it. It's quite an easy one compared to some other levels I've seen in the Steam Workshop.117 downloadsupdated 9 y ago
- VOLANIC TUBULESby mrhthepie117 downloadsupdated 9 y ago
- ANGELSILKby 76561199152535049One of the smoothest and softest possible silks - useful for comfort items like blankets or cushions.117 downloadsupdated 8 mo ago
- Kabbalah, the Tree of Lifeby door"While most academics of today find studying esoteric mysticism below them, one cannot deny the roots modern Alchemy has in practices the ancients knew only as magic."117 downloadsupdated 5 y ago
- LINEA CUTREby nDante117 downloadsupdated 8 y ago
- Polishing Agentby lightningstudiosWith abrasive and semi-caustic properties, this compound is great for bringing out that extra shine when polishing a metal object.115 downloadsupdated 9 y ago
- SILVERLESS OREby 76561198728198881"He's certain that the latest shipment is genuine. However, applying alchemy to the issue might just be easier than convincing him that the new supplier is incompetent."115 downloadsupdated 7 y ago
- W1.3 ELEMENTAL FIBRESby ShadowCluster115 downloadsupdated 6 y ago
- Volatile cordby EarthfireWhile work enviroments in the lead mines became more and more a financial concern for the prestigious House Van Tassen, measurements were needed to be taken to ensure the endeavours to be lucrative. This has lead to an uprise in the developement of security equipment. Among these inventions, vola...115 downloadsupdated 5 y ago
- CALM BEFORE THE STORM - 2021 Tournament Week 5by brookieozThe door to the laboratory slams open as the apprentice steps in hurriedly. Stepping over to the transmutation engine, the apprentice starts work hastily with a clattering of arm components. The apprentice looks around the laboratory. Where are the unbonders? -- Metric A: (Cycles * Unbonders) > A...115 downloadsupdated 6 y ago
- A WELCOME TO HOUSE COLVAN - 2021 Tournament Week 0 / Testby brookieozApprentice Alchemist: ...as you can see here on display, Master Ravari’s innovations have spurred an era of progress and prosperity for House Colvan. From revolutionizing manufacturing to landmark advances in research and technology, Master Ravari has been instrumental in ensuring the prosperity...115 downloadsupdated 6 y ago
- IMPROVED EXPLOSIVE PHIAL - 2021 Tournament Week 1by brookieozVerrin Ravari: So, you retrieved this from the front lines in House Van Tassen territory? Apprentice Alchemist: Yes sir. It seems to have failed to explode. Verrin holds the phial up to the light shining in through a window, swirling the volatile orange liquid around. Verrin Ravari: A rudimentary...115 downloadsupdated 6 y ago
- Soil Stabilizerby Taylor LovelaceMention the phrase "agricultural science" to any typical alchemist, and the response you receive will most likely consist primarily of ridicule. Although the agricultural process has become quite complicated in recent times to keep up with growing demands, it has an unfortunate stigma for being "...115 downloadsupdated 7 y ago
- Good Gameby jonno17Fairly Simple.114 downloadsupdated 9 y ago
- Existence Essenceby vizthexYou're not sure why you'd make this, but maybe you'll realize why later on.113 downloadsupdated 8 y ago
- HORN SILVERby zorflaxCenturies ago when quintessence was first discovered, early alchemists didn't have the safety protocols that have become mandatory whenever quintessence is handled. There were many tales of terrible alchemical accidents around the world. Precious quintessence would seep into the groundwater and f...113 downloadsupdated 5 y ago
- ACTIVE POLYMERASEby biggiemac42Week 6 of 2020 tournament113 downloadsupdated 5 y ago
- SOMA TRIANGLEby mootmoot112 downloadsupdated 9 y ago
- LUSTROUS SYRUPby zorflaxActually, it just tastes like water. Don't tell the customers, though.112 downloadsupdated 4 y ago
- AMALGAMATED GOLD RINGby biggiemac42Week 2 of 2020 tournament112 downloadsupdated 5 y ago
- HIGH GLOSS FINISHby biggiemac42Week 7 of 2020 tournament112 downloadsupdated 5 y ago
- Pesticideby vizthexA farmer has asked you to make him a pesticide to kill all the annoying beetles that keep feasting on his crops. Pure fire will work best for this, two of them triplex-bonded to help ensure that the decay process works properly.111 downloadsupdated 8 y ago
- NORMALLY POSSIBLE PUZZLEby CHARMANDER111 downloadsupdated 8 y ago
- VAN BERLO SEGMENTby MK111 downloadsupdated 6 y ago
- Estrogen & Testosteroneby RonuPlaysThis process for synthesizing estrogen and testosterone, the primary sex hormones of humans, was developed by a bright student many years ago during his studies in the Imperial University. It is said he found existing methods to be particularly wasteful or produce dangerous side effects, and as h...111 downloadsupdated 2 y ago
- POTENT POTABLESby biggiemac42Week 1 of 2020 tournament111 downloadsupdated 5 y ago
- Carbon Meshby LOGAN110 downloadsupdated 9 y ago
- SUPERHEATED GOLD DIPOLEby Wulli110 downloadsupdated 9 mo ago
- UPGRADING METAL IN WHEELby 76561198397380011Just a simple puzzle. I got (90/226/21) for Area-Cycle and (70/376/21) for Area-Cost. You can get better solutions.110 downloadsupdated 8 y ago
- GRAPHENEby WonjagAlchemists were always searching for miracle substances, and this stuff can do ANYTHING. Inspired by the other chemistry-themed puzzles on the workshop.110 downloadsupdated 9 y ago
- MIST OF DOUSING - 2021 Tournament Week 3by brookieozBATTLEFIELD REPORT The new incendiary devices are very effective in combat. A single phial is able to disperse an entire squad of guards with minimal effort and skill required for use. They are also very dangerous, and as such we have restricted their access to high-rank officers only. Unfortunat...110 downloadsupdated 6 y ago
- VOLATILITY AND TRANQUILITYby biggiemac42Week 4 of 2020 tournament110 downloadsupdated 5 y ago
- PANACEA TO POISON - 2021 Tournament Week 2by brookieozA dim light flickers in the laboratory, illuminating a small portion of the transmutation engine. A figure labors over the device, with not so much of a single creak save for a few quiet rustles. On the corner of the engine lies a copy of Fontenelle’s Alchemical Observations, open to Formula No....110 downloadsupdated 6 y ago
- 坚固外壳by ice_yuukibutsu109 downloadsupdated 5 y ago
- Atom Toy 01: A Swapby winter1703I like the encaged idea of cake>pie very much, so I decide to made some puzzle my own, exploits the mechanic of hexagon grid. Move around the atoms to solve the puzzle, no glyph of calcification ot duplication. Yey it is full in the cage, but the atom can still be moved in some pattern, though at...109 downloadsupdated 9 y ago
- Living Metal (easy)by Ebin"Tiberius what on earth did you do?" "what do you mean, the product is trying to eat you?" "WHAT DID I TELL YOU ABOUT USING THOSE? DON'T MAKE EXCUSES, KILL IT!" there are many reasons you shouldn't be using Vitae and Mors, young alchemist. not least the prospect of your work killing you, bursting...109 downloadsupdated 9 y ago
- 628965by Blaze313108 downloadsupdated 3 y ago
- Fire Wheelby Valentin108 downloadsupdated 7 y ago
- GOLD RINGby Jenny108 downloadsupdated 9 y ago
- Litharge Refinementby 76561199365498658Turning lead into gold is one of the best known applications of alchemy. You want to make gold with litharge and cinnabar, but you find the purification of lead and quicksilver cumbersome. Can you turn litharge into gold directly? There is only one way to find out.108 downloadsupdated 4 y ago
- WINDBOMB PRODUCTIONby 76561198375746173Tried to make a production puzzle according to the new puzzle format.108 downloadsupdated 9 y ago
- QUINTESSENTIAL AEROGELby 76561199365498658Week 12 of Opus Magnum Weeklies 2022 Recent advances in alchemical engineering led to the discovery of a class of ultra-light materials called aerogels. The Quintessential Aerogel is a newly discovered variant, which is praised for its ability to absorb the four cardinal elements and is expected...108 downloadsupdated 4 y ago
- ELEMENTAL JEWEL SETTING - 2021 Tournament Week 8by brookieozDespite the aftershocks, the infamous Fortunatus Ball did become the genesis of one of the most glamorous and prestigious competitions: the annual Jewel Competition. The magnificent gem crowning the headpiece worn by Lady Clara Soria of House Soria ignited an arms race between alchemists and jewe...108 downloadsupdated 6 y ago
653 mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.