Opus 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
- A STUDENT'S PASTIMEby armin.rigoAs a student of Alchemy, there are many projects of considerable size that you must undertake and many ex cathedra lectures of considerable length. One day, during a lengthy practical course, the senior assistant was -- so to speak -- "rambling on and on". You found yourself keeping busy by hidin...96 downloadsupdated 9 y ago
- RADIO RECEIVERSby 76561198815527595Week 8 of the 2022 Opus Magnum Tournament. Metrics: Cycles > Area > Cost Tracks + Instructions > Cycles > Area Reagents: Reactive Tin Products: Copper Diode Detector Iron Diode Detector Notes: Tracks here is defined by number of track hexes. VICTORIA HAMMERLOCK: Ok, if my calculations are correct...96 downloadsupdated 5 y ago
- FULMINATIONby 76561198815527595Week 6 of the 2022 Opus Magnum Tournament. Metrics: Throughput > Cost > Instructions Latency > Cost > Instructions Reagents: Iron Hematite Elemental Salt Elemental Quicksilver Products: Fulminating Gold Notes: Throughput (technically inverted throughput) as a metric here is defined as the amount...96 downloadsupdated 5 y ago
- MEGA CALCIFICATIONby 7656119837535996395 downloadsupdated 8 y ago
- metallurgy mazeby 7656119835759849595 downloadsupdated 9 y ago
- CURE AND POISON FROM CALCIFIED IVYby rcliffen95 downloadsupdated 9 y ago
- FACE POWDER?by 76561199376728763This looks like the Face Powder puzzle in the first chapter, but it is not. This is a very hard puzzle.95 downloadsupdated 4 y ago
- RECYCLING JEWELSby Musa95 downloadsupdated 8 y ago
- METAL CYCLONE 268by 76561199365498658This is an autogenerated puzzle. Originally GEN268 from the 24-Hour Challenge test round hosted by panic. example human solution example human solution 294 downloadsupdated 2 y ago
- THE SEED OF ANIMISMby nasikaLet's challenge this little practice!94 downloadsupdated 8 y ago
- FASTENER STRIPby CaeLet's make some alchemical Velcro!94 downloadsupdated 9 y ago
- UPGRADED EXPLOSIVE CABLEby Tzaphqiel94 downloadsupdated 9 y ago
- Water Polarization (Disjoint Alchemy 1.3)by 76561199057291573START HERE: Reagents: Depolarized Tripartite Water Products: Polarized Tripartite Water ========================================= From G. Talma's "Disjoint Molecular Structures and Their Applications", Chapter II Although almost all atoms have been shown to be capable of being the basis of a disj...94 downloadsupdated 7 mo ago
- LEAVE NO TRACEby 76561198815527595Week 0 of the 2022 Opus Magnum Tournament. this puzzle is non-scoring Suggested Metrics: Area > Cycles > Cost Sum > Instructions (Feel free to submit for any other metrics as well! These are just my original intended metrics for the puzzle.) Reagents: Silver Mirror Products: Elemental Gold Vanish...94 downloadsupdated 5 y ago
- GLYPH OF DISPOSALby 89oThe final glyph of transfiguration that is necessary to prevent overload of certain types of atoms is the glyph of disposal. Construct it using a fixed double length 2 arm as your reagent. By misotanni.93 downloadsupdated 8 y ago
- CUPRITEby zorflaxFire gashes across the city like blood from an open wound. Its newly deformed glower is reflected by the sky. But that colour had long since infected every visible surface of House Colvan. Most of which has, too, fallen into disarray. The throne room's door had been barricaded by the few men stil...93 downloadsupdated 4 y ago
- Chalcopyrite Separationby 76561199365498658You have been tasked with extracting copper and pyrite from some raw copper ore. Such a simple job should not pose any difficulty to an experienced alchemist, but can you do it in the most efficient way possible? (Author min cycle: 23)93 downloadsupdated 4 y ago
- POTENT PAINKILLERSby 76561198815527595Week 7 of the 2022 Opus Magnum Tournament. Metrics: Area > Cycles > Cost Sum > Instructions Reagents: Elemental Salt x7 Products: Potent Analgesic Potent Anaesthetic Notes: Sum as a metric here is defined as cost + cycles + area. VICTORIA HAMMERLOCK: Corvo! What happened to you? Let me get a chai...93 downloadsupdated 5 y ago
- AETHER REACTORby 76561198815527595Week 5 of the 2022 Opus Magnum Tournament. Metrics: Cycles > Cost > Instructions Instructions > Cycles > Cost Reagents: Quintessential Core Products: Elemental Quintessence x2 Notes: 12 products each CORVO ATREUS: So why are you wanting all these whatchamacallit cores? It's not easy getting my ha...93 downloadsupdated 5 y ago
- MORALITY SERUMby Chariot_RiderGovernments and philosophers have always pondered, what is the proper way to enforce order? Perhaps it is force, says the government. Perhaps enforcement of societal values should be left to your closest friends and family, says the philosopher. The alchemist says a morality serum will do fine.92 downloadsupdated 8 y ago
- EXPLOSIVE CLAYby Tzaphqiel92 downloadsupdated 9 y ago
- SOLID GOLDby Tamiel92 downloadsupdated 9 y ago
- STRONG POISONby 76561198434382835upon being consumed, the water atoms break off and the mors is taken with them. this mors can flow through your blood stream and cause serious damage within the hour, killing most. if they survive, the lead and salt can become a part of the bone structure, allowing the lead to do damage for years...92 downloadsupdated 4 y ago
- Tinstone Breweryby 76561199365498658You have been asked to extract tin from some tinstone and you know that alcohol can be produced from the alchemical residue. It isn't something a professional alchemist would do, but what's stopping you anyway?92 downloadsupdated 4 y ago
- LUBRICATING SOLVENTSby 76561198815527595Week 3 of the 2022 Opus Magnum Tournament. Metrics: (Tracks + Arms) * Cycles > Cost > Area Cost > Area > Cycles Reagents: Crude Oil Crude Oil Products: Lubricating Solvent Lubricating Solvent Notes: Tracks here is defined as number of track hexes. Arms here is defined as number of arm bases. CORV...92 downloadsupdated 5 y ago
- Arrowby Valentin91 downloadsupdated 7 y ago
- Benzeneby cake>piePart of a series on Benzene & friends. Puzzles in this series are not always of increasing difficulty. Feel free to skip ahead if you get stuck! ---------------------------------------------- > Check out my other puzzles!91 downloadsupdated 9 y ago
- SOPHIAby ApertureSee before you an alchemical reaction not previously known to man. I do not know if it wisdom or folly to seek knowledge for its own sake.91 downloadsupdated 9 y ago
- Purified Airby TURBōDue to the increasing industrialization and factories instalment in the territories of the Houses, the air quality has decreased considerably. The only condition imposed by the factory owners is that the process must be as cheap as possibly.91 downloadsupdated 6 y ago
- Smoke reagent (QTT 1)by Tat011"We want you to research the possibility of recycling smoke by turning it directly into quintessence, you're required to not waste any materials as that would defeat the purpose of the experiment."91 downloadsupdated 22 mo ago
- Chlorophyte Oreby 76561198366943304This strange ore has been found to have large amounts of chlorophyll, allowing it to grow and spread. It is highly sought after because of the strength and growability.91 downloadsupdated 7 y ago
- EXPLOSIVE LOGIC UNIT - 2021 Tournament Week 9by brookieozA report sits on the chief inspector's desk. Preliminary Investigation Report Transmutation Engine - Object #13 Security Level: TOP SECRET Safety precautions: This transmutation engine is to be kept locked and inactive in Room 101. It should be checked on a regular basis to ensure it has not rand...91 downloadsupdated 5 y ago
- RAVARI'S RAGE - 2021 Tournament Week 6by brookieozOverlap starting glyph link: Verrin Ravari: Imbecile! How dare you misrepresent my work with a subpar imitation! The apprentice winces as Verrin’s wrath infuses the whole laboratory, standing in silence with drops of sweat coalescing on the forehead. No sleeve comes up to wipe it away as marbles...91 downloadsupdated 5 y ago
- [CRR #9] Corrosive Sublimateby Gym RatThe Codex: Puzzle #9 This is ninth in a series of puzzles in the Codex Radicis Rationalis ← Previous Next → Procure a sample of mercury(II) chloride with quicksilver and distilled water. Difficulty: Moderate to difficult [6.7/10] rationalRoot's solution Ancient practitioners of Paracelsianism hav...90 downloadsupdated 6 y ago
- [CRR #8] Polymethyleneby Gym RatThe Codex: Puzzle #8 This is eighth in a series of puzzles in the Codex Radicis Rationalis ← Previous Next → Synthesize polymethylene with diazomethane . The product should consist of a chain of hydrogen and carbon in a 2:1 ratio. Difficulty: Fair [6/10] **'Polymethylene' is the archaic name for...90 downloadsupdated 6 y ago
- Elemental Jewelby vizthexSomeone has asked you to make a jewel composed of nearly every element. No idea why, but you're not the type to ask question so you do it. Maybe it's for a piece of jewelry or something?90 downloadsupdated 7 y ago
- PHINEAS' TIMED EXAMby PallandoziProfessor Phineas : Pay attention carefully, young alchemists. This year we are trialing a new type of end of term examination. For the purposes of this exam we don't care about cost, area or even the number of cycles used. What matters is how long it takes you to get a solution. It doesn't matte...90 downloadsupdated 8 y ago
- REINFORCED COPPER CABLEby Tzaphqiel90 downloadsupdated 9 y ago
- MATERIAL INEFFICIENCYby IncomputableTLDR: Never buy materials in stocks. Incinerate extras or find a place to squeeze them in.90 downloadsupdated 9 y ago
- GREED TO GOLDby bunfoofsaw this puzzle and thought it would be fun to turn the shard into gold :3 REAGENTS: - Splinter of Greed PRODUCTS: - Elemental Gold90 downloadsupdated 20 mo ago
- RECONSTRUCTED GOLDby 7656119946595532890 downloadsupdated 6 mo ago
- WASTE RECLAMATION Iby Lemon DropsIt is an unfortunate fact that iron undergoes a natural alchemical reaction when exposed to air; in simpler terms, rusts. With modern alchemical engines, it is viable to reverse this reaction, producing new iron from a fine rust powder, releasing trapped air in the process. Though at this time it...90 downloadsupdated 6 mo ago
- GLYPH OF UNIFICATIONby 89oThe next level of the transmutation engine requires you to handle quintessence. Use elemental salt and Van Berlo's wheel to create a glyph of unification and start mass production of quintessence. By misotanni.89 downloadsupdated 9 y ago
- ESSENCE OF SLIMEby 人外スライム89 downloadsupdated 8 y ago
- ARTIFICIAL OXYGENATIONby EbinAfter the recent deaths caused by a foreign lung disease, slow to remove and quick to kill, somebody thought up a rather cunning idea; oxygenate a patient's blood with an engine while their lungs heal. Thousands of lives have been saved, and many more will likely benefit. A nice easy one 4U88 downloadsupdated 9 y ago
- MOLTEN GOLDby Mezian88 downloadsupdated 8 y ago
- Recompositionby WSort out the elements, without breaking the chain.88 downloadsupdated 9 y ago
- Automaton Heartstringby CorpCo1/27/41 A vial of stabilized water showed up in my little… alchemy hovel. Along with a new schematic from my father. If I had any doubts that he simply didn’t care for the law anymore those doubts are gone now. An automaton?? Fabricated with an illegally obtained alchemical engine no less. I don’...88 downloadsupdated 4 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.

