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
- Bulk TransmutationWeek 6 of the 2025 Opus Magnum Tournament Results stream64 downloadsupdated 20 mo ago
- The Codex of Alchemical Engineering Remastered: Vertigrisby SpearkaYou force open the door, its rusted hinges shattering on the slightest act of force. You take a moment to consult your journal to see if you have come to the right place; very few books tell of the tale of the very first Codex, you cross-reference your location, your fingers trembling at the pros...63 downloadsupdated 8 y ago
- The Codex of Alchemical Engineering Remastered: Philosophers Stoneby SpearkaYou force open the door, its rusted hinges shattering on the slightest act of force. You take a moment to consult your journal to see if you have come to the right place; very few books tell of the tale of the very first Codex, you cross-reference your location, your fingers trembling at the pros...63 downloadsupdated 7 y ago
- LITTLE BIT OF EVERYTHINGby 7656119841463551363 downloadsupdated 15 mo ago
- MOVE TOGETHER! OR NOT?by woodyhoko63 downloadsupdated 9 y ago
- ??? product (QTT 2)by Tat011"You've been tasked with transforming quintessence into one of our experimental molecules (it's name and properties are classified, we apologize for the inconvenience but view it as a necessary security requirement)."63 downloadsupdated 22 mo ago
- UNIVERSAL ADHESIVEby 76561198873233618So relentlessly effective, arms that grab even its component parts will be unable to let go! (Drop and reset instructions disabled)62 downloadsupdated 7 mo ago
- Weakness Elixirby JessieAlchemist, come quickly. Don't drink the water. The house has been poisoned. We don't have long. We need a cure that we can add to the water supply. It must counteract the effects of the poison and also strengthen the user. From what we have identified this is most likely from House Yang who have...62 downloadsupdated 6 y ago
- Oobleckby PackbatOriginally developed in the course of an unrelated series of experiments, the strange behavior of this liquid makes it a popular alchemical demonstration for visitors to the University and other institutions where the field was studied. --- Created as part of a series of Opus Magnum puzzle creato...62 downloadsupdated 8 y ago
- ELEMENTS BRAIDby nekojitaMake 4 elements into complex chain.62 downloadsupdated 9 y ago
- EASY MONSTER PUZZLE 11by MOSTROMBRA62 downloadsupdated 7 y ago
- Self-Organizing FluidWeek 3 of the 2025 Opus Magnum Tournament Results stream62 downloadsupdated 20 mo ago
- Thermic CapacitorWeek 2 of the 2025 Opus Magnum Tournament Results stream62 downloadsupdated 20 mo ago
- TAX FRAUDThis puzzle was for Week 5 of the Opus Magnum 2026 tournament. Enjoy!62 downloadsupdated 6 mo ago
- ULTIMATHINEby Fredthulhu 風虎From the Lifetao atom you can create the glorious and very expensive material Ultimathine. It's beatuiful encompassing life, death and all the elements. I hope you will enjoy!61 downloadsupdated 7 y ago
- SOUL CRYSTALby 76561198397380011This is an extremely hard one which takes me almost a month to solve. Please try it if you want some challenge. I bet no one can solve this puzzle in 2018. BTW please don't waste precious atoms. Regent: Salted Lead Products: Soul Crystal - Vitae Soul Crystal - Mors Ring of Salt61 downloadsupdated 8 y ago
- MAGNETIZED IRONby failuigi41Reagents: Lodestone Filings (x2) Products: Magnetic Filings (x2) A new field of study has made itself prominent recently in the halls of the University - Founded by Professor Tesla of the Bond Dynamics division, the field of Voltaics concerns itself with the flow of energy along the bonds between...61 downloadsupdated 8 y ago
- AFTER DARKby MusaWhen you work hard the nightfall come :) My solution : (550 / 172 / 129) You can do better than me :D61 downloadsupdated 8 y ago
- LEVEL UPby sinew2861 downloadsupdated 8 y ago
- Alchemical Philosophyby LambdaYou've got lumps of lead, but you'd much rather have gold. Get it done, pronto!61 downloadsupdated 9 y ago
- SNOWFLAKEby Gii200061 downloadsupdated 9 y ago
- Crystal Precursor - Research into Unconventional Alchemy XXIXby RithanielJournal of Conrad Azohi - Day 1,337 after embarking Exiting Atro took less time than it did to originally find the oasis, which implies we were closer to the mountains that I knew. Only four days of traveling across oil-caked wastes, we exited the dark landscape. However, upon exiting, we were me...60 downloadsupdated 3 y ago
- Life and Deathby vizthexSomeone shady has asked you to make the very essences of Life and Death. Since you don't ask questions, you started to make it before realizing your mistake in taking on this client.... This will be your hardest challenge yet. I went overboard with this......60 downloadsupdated 7 y ago
- BASIC ANIMATIONby pqRachel60 downloadsupdated 7 y ago
- The Codex of Alchemical Engineering Remastered: Yohimbineby SpearkaYou force open the door, its rusted hinges shattering on the slightest act of force. You take a moment to consult your journal to see if you have come to the right place; very few books tell of the tale of the very first Codex, you cross-reference your location, your fingers trembling at the pros...60 downloadsupdated 8 y ago
- HALLOWED OREby Chariot_RiderThe Lord came down from heaven and because of his sacrifice he has made the unclean clean. In the same way, we can take this lowly lead and purify it's imperfections, allowing the creation of God to shine all the clearer.60 downloadsupdated 8 y ago
- INTENSIFIED FLAMEby TorusTurn fire into bigger fire. Triplex bonds added to add some challenge. My own solution is 250 cost/278 cycles/104 area, I'm fairly sure there's room for improvement there.60 downloadsupdated 8 y ago
- JUST WATERby Koarsimple water creation for speed solutions60 downloadsupdated 9 y ago
- Snow AmputationThis puzzle was for Week 1 of the Opus Magnum 2026 tournament. Enjoy!60 downloadsupdated 6 mo 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.

