Home / Recipes / Blue Backdoor Science ๐ต๐ช๐ฌ How to Make Blue Backdoor Science in Infinite CraftBlue Backdoor Science is a long haul. Even on the shortest known route it takes 82 combinations to get there, and the final one is Backdoor Science plus Blue Slime. Expect to build several intermediate elements you will never use again.
The final combination
๐ช๐ฌ Backdoor Science+ ๐ง Blue Slime= ๐ต๐ช๐ฌ Blue Backdoor Science
Marathon 82 steps from the base elements ยท crafting depth 133 ยท 2 known recipes
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What is worth knowing At 82 steps it is longer than 100% of solved elements, which puts it in our marathon band. Only 2 known combinations produce Blue Backdoor Science, so there is very little room to improvise. Follow the path exactly. Its crafting depth of 133 is unusually deep. Depth counts the longest chain needed to reach it, and most elements people search for sit well below this. Abstract concepts like Blue Backdoor Science usually come from combining two things that are related in meaning rather than in substance. That is worth remembering if you go off-path. Full crafting path from the base elements Start with Water, Fire, Wind and Earth, then follow these 82 combinations in order.
1 ๐ Earth+ ๐จ Wind= ๐ซ๏ธ Dust2 ๐ซ๏ธ Dust+ ๐ Earth= ๐ช Planet3 ๐ฅ Fire+ ๐ช Planet= โ๏ธ Sun4 ๐ฅ Fire+ โ๏ธ Sun= โ๏ธ Solar5 ๐ช Planet+ โ๏ธ Solar= ๐ป System6 ๐ฅ Fire+ ๐ป System= ๐ป Computer7 ๐ป Computer+ ๐ฅ Fire= ๐จ Hack8 ๐ฅ Fire+ ๐ง Water= ๐จ Steam9 ๐ฅ Fire+ ๐จ Steam= ๐ Engine10 ๐ Engine+ ๐จ Steam= ๐ Train11 ๐ Train+ ๐ง Water= ๐ค Submarine12 ๐ค Submarine+ ๐ป System= ๐ฐ Subsystem13 ๐จ Hack+ ๐ฐ Subsystem= ๐ช Backdoor14 ๐จ Wind+ ๐จ Wind= ๐ช๏ธ Tornado15 ๐ช๏ธ Tornado+ ๐ง Water= ๐ Tsunami16 ๐ Earth+ ๐ Tsunami= ๐๏ธ Island17 ๐ Earth+ ๐๏ธ Island= ๐ Continent18 ๐ง Water+ ๐จ Wind= ๐ Wave19 ๐จ Steam+ ๐ Wave= ๐ Surf20 ๐ Continent+ ๐ Surf= ๐ฆ Australia21 ๐ Earth+ ๐ Earth= ๐๏ธ Mountain22 ๐๏ธ Mountain+ ๐จ Wind= ๐จ๏ธ Avalanche23 ๐จ๏ธ Avalanche+ ๐จ Wind= โ๏ธ Snow24 ๐ฆ Australia+ โ๏ธ Snow= ๐
No25 ๐ง Water+ ๐ง Water= ๐ Lake26 ๐ Lake+ ๐ง Water= ๐ Ocean27 ๐
No+ ๐ Ocean= ๐ซ Not28 ๐ซ๏ธ Dust+ ๐ Engine= ๐งน Vacuum29 ๐ฅ Fire+ ๐งน Vacuum= ๐ณ๏ธ Black Hole30 ๐ณ๏ธ Black Hole+ ๐ช๏ธ Tornado= ๐ Singularity31 ๐ซ Not+ ๐ Singularity= ๐ค Plural32 ๐ช Backdoor+ ๐ค Plural= ๐ช Backdoors33 ๐ Earth+ ๐ง Water= ๐ฑ Plant34 ๐ฑ Plant+ ๐จ Wind= ๐ผ Dandelion35 ๐ผ Dandelion+ ๐จ Wind= ๐ฑ Seed36 ๐ Earth+ ๐ฑ Plant= ๐ณ Tree37 ๐ฑ Seed+ ๐ณ Tree= ๐ Apple38 ๐ Earth+ ๐ Wave= ๐๏ธ Sand39 ๐ฅ Fire+ ๐๏ธ Sand= ๐ฅ Glass40 ๐ฅ Fire+ ๐ฅ Glass= ๐ Lens41 ๐๏ธ Mountain+ ๐๏ธ Sand= ๐ฟ Pyramid42 ๐ Lens+ ๐ฟ Pyramid= ๐ Eye43 ๐ Apple+ ๐ Eye= ๐ I44 ๐ฅ Fire+ ๐จ Wind= ๐จ Smoke45 ๐ฑ Plant+ ๐จ Smoke= ๐ฏ๏ธ Incense46 ๐ Lens+ ๐ง Water= ๐ฌ Microscope47 ๐ฏ๏ธ Incense+ ๐ฌ Microscope= ๐ฌ Science48 ๐ I+ ๐ฌ Science= ๐ฌ IScience49 ๐ผ Dandelion+ ๐ฑ Plant= ๐ฟ Weed50 ๐จ Smoke+ ๐ฟ Weed= ๐จ High51 ๐ Lake+ ๐ Ocean= ๐ Sea52 ๐ Sea+ ๐จ Wind= โต๏ธ Sail53 ๐จ High+ โต๏ธ Sail= ๐น Mast54 ๐ Engine+ ๐ Engine= ๐ Rocket55 ๐ฑ Plant+ ๐ Rocket= ๐ชด Space Plant56 ๐ชด Space Plant+ ๐จ Wind= ๐ Space Weed57 ๐น Mast+ ๐ Space Weed= ๐ Space Mast58 ๐ Earth+ ๐ฅ Fire= ๐ Lava59 ๐ Lava+ ๐ง Water= ๐ชจ Stone60 ๐ฑ Plant+ ๐ชจ Stone= ๐ฆด Fossil61 ๐ฅ Fire+ ๐ฆด Fossil= ๐ฆ Dinosaur62 ๐ซ๏ธ Dust+ ๐จ Wind= ๐ช๏ธ Sandstorm63 ๐ซ๏ธ Dust+ ๐ณ Tree= ๐ฒ Wood64 ๐ช๏ธ Sandstorm+ ๐ฒ Wood= ๐ก Sandal65 ๐ฆ Dinosaur+ ๐ก Sandal= ๐ Thesaurus66 ๐ Lake+ ๐ Thesaurus= ๐ Synonym67 ๐ Space Mast+ ๐ Synonym= ๐จโ๐ Space Master68 ๐ฌ IScience+ ๐จโ๐ Space Master= ๐ฌ Science Master69 ๐ช Backdoors+ ๐ฌ Science Master= ๐ช๐ฌ Backdoor Science70 ๐ณ Tree+ ๐ง Water= ๐ River71 ๐๏ธ Mountain+ ๐ River= ๐๏ธ Canyon72 ๐ Ocean+ ๐ง Water= ๐ Fish73 ๐ Earth+ ๐ Fish= ๐ณ Whale74 ๐๏ธ Canyon+ ๐ณ Whale= ๐ Blue Whale75 ๐ Earth+ ๐จ Steam= ๐ฉ Mud76 ๐ซ๏ธ Dust+ ๐ฑ Plant= ๐ฑ Pollen77 ๐ฑ Pollen+ ๐จ Wind= ๐คง Allergy78 ๐คง Allergy+ ๐ง Water= ๐คง Sneeze79 ๐ฉ Mud+ ๐คง Sneeze= ๐คง Mucus80 ๐ Earth+ ๐คง Mucus= ๐ง Slime81 ๐ Blue Whale+ ๐ง Slime= ๐ง Blue Slime82 ๐ช๐ฌ Backdoor Science+ ๐ง Blue Slime= ๐ต๐ช๐ฌ Blue Backdoor ScienceCrafting tree 1 Earth + Wind โ Dust 2 Dust + Earth โ Planet 3 Fire + Planet โ Sun 4 Fire + Sun โ Solar 5 Planet + Solar โ System 6 Fire + System โ Computer 7 Computer + Fire โ Hack 8 Fire + Water โ Steam 9 Fire + Steam โ Engine 10 Engine + Steam โ Train 11 Train + Water โ Submarine 12 Submarine + System โ Subsystem 13 Hack + Subsystem โ Backdoor 14 Wind + Wind โ Tornado 15 Tornado + Water โ Tsunami 16 Earth + Tsunami โ Island 17 Earth + Island โ Continent 18 Water + Wind โ Wave 19 Steam + Wave โ Surf 20 Continent + Surf โ Australia 21 Earth + Earth โ Mountain 22 Mountain + Wind โ Avalanche 23 Avalanche + Wind โ Snow 24 Australia + Snow โ No 25 Water + Water โ Lake 26 Lake + Water โ Ocean 27 No + Ocean โ Not 28 Dust + Engine โ Vacuum 29 Fire + Vacuum โ Black Hole 30 Black Hole + Tornado โ Singularity 31 Not + Singularity โ Plural 32 Backdoor + Plural โ Backdoors 33 Earth + Water โ Plant 34 Plant + Wind โ Dandelion 35 Dandelion + Wind โ Seed 36 Earth + Plant โ Tree 37 Seed + Tree โ Apple 38 Earth + Wave โ Sand 39 Fire + Sand โ Glass 40 Fire + Glass โ Lens 41 Mountain + Sand โ Pyramid 42 Lens + Pyramid โ Eye 43 Apple + Eye โ I 44 Fire + Wind โ Smoke 45 Plant + Smoke โ Incense 46 Lens + Water โ Microscope 47 Incense + Microscope โ Science 48 I + Science โ IScience 49 Dandelion + Plant โ Weed 50 Smoke + Weed โ High 51 Lake + Ocean โ Sea 52 Sea + Wind โ Sail 53 High + Sail โ Mast 54 Engine + Engine โ Rocket 55 Plant + Rocket โ Space Plant 56 Space Plant + Wind โ Space Weed 57 Mast + Space Weed โ Space Mast 58 Earth + Fire โ Lava 59 Lava + Water โ Stone 60 Plant + Stone โ Fossil 61 Fire + Fossil โ Dinosaur 62 Dust + Wind โ Sandstorm 63 Dust + Tree โ Wood 64 Sandstorm + Wood โ Sandal 65 Dinosaur + Sandal โ Thesaurus 66 Lake + Thesaurus โ Synonym 67 Space Mast + Synonym โ Space Master 68 IScience + Space Master โ Science Master 69 Backdoors + Science Master โ Backdoor Science 70 Tree + Water โ River 71 Mountain + River โ Canyon 72 Ocean + Water โ Fish 73 Earth + Fish โ Whale 74 Canyon + Whale โ Blue Whale 75 Earth + Steam โ Mud 76 Dust + Plant โ Pollen 77 Pollen + Wind โ Allergy 78 Allergy + Water โ Sneeze 79 Mud + Sneeze โ Mucus 80 Earth + Mucus โ Slime 81 Blue Whale + Slime โ Blue Slime 82 Backdoor Science + Blue Slime โ Blue Backdoor Science
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Other ways to make Blue Backdoor Science 2 combinations are known to produce Blue Backdoor Science. Here are 2 of them.
Blue Backdoor Science at a glance
Steps to craft 82 Marathon
Crafting depth 133 longer than 100% of solved elements
Known recipes 2 ways to make it
Used in 0 other combinations Other elements that take 82 steps Similar effort to Blue Backdoor Science, if you want something else to chase.
Frequently asked questions How do you make Blue Backdoor Science in Infinite Craft? Combine Backdoor Science with Blue Slime. The full path from the base elements takes 82 steps.
How many steps does it take to make Blue Backdoor Science? 82 steps on the shortest known path from Water, Fire, Wind and Earth.
Is Blue Backdoor Science hard to make in Infinite Craft? It rates as marathon. At 82 steps it is longer than 100% of solved elements.
Is there more than one way to make Blue Backdoor Science? Yes. 2 combinations are known to produce Blue Backdoor Science, and the shortest route is shown above.
Path verified against the open recipe graph on 2026-10-23 . Method described in our methodology , data credited on data sources .