| Item Name↑ | Code Name | Version | Type | Category | Mod | |
 | Mushrooms | MushroomGeneric5 | 41.1 | Food | items_food | Classic |
 | Mushrooms | MushroomGeneric6 | 41.1 | Food | items_food | Classic |
 | Mushrooms | MushroomGeneric7 | 41.1 | Food | items_food | Classic |
 | Mushrooms on a Stick | HCShroomstick | B41 Beta | Food | Food BBQ | Hydrocraft |
 | Music Textbook | HCBookmusic | B41 Beta | Literature | Books | Hydrocraft |
 | Muskrat (Female) | HCMuskratfemale | B41 Beta | Normal | Hunting | Hydrocraft |
 | Muskrat (Male) | HCMuskratmale | B41 Beta | Normal | Hunting | Hydrocraft |
 | Mussel Shell | HCMusselshell | B41 Beta | Normal | Boneworking | Hydrocraft |
 | Mustard | Mustard | B41 Beta | Food | items_food | Hydrocraft |
 | Mustard Powder | HCMustardpowder | B41 Beta | Food | Food Condiments | Hydrocraft |
 | Mutton Chop | MuttonChop | 41.1 | Food | items_food | Classic |
 | Mutton Sausage | HCSausagemutton | B41 Beta | Food | Food Sausage | Hydrocraft |
 | Mycology Textbook | HCBookmycology | B41 Beta | Literature | Books | Hydrocraft |
 | Mystery Seeds Packet | HCMysteryseedspacket | B41 Beta | Normal | Seeds | Hydrocraft |
 | Nachos | HCNachos | B41 Beta | Food | Food Mexican | Hydrocraft |
 | Nachos Grande | HCNachosgrande | B41 Beta | Food | Food Mexican | Hydrocraft |
 | Nail Clipper | HCNailclipper | B41 Beta | Normal | Bathroom | Hydrocraft |
 | Nail Gun | HCNailgun | B41 Beta | Weapon | Tools | Hydrocraft |
 | Nail Gun Ammo | HCNailgunammo | B41 Beta | Normal | Tools | Hydrocraft |
 | Nail gun clip | HCNailclip | B41 Beta | Normal | Tools | Hydrocraft |
 | Nail Mold | HCNailmold | B41 Beta | Drainable | Pottery | Hydrocraft |
 | Nail Polish Remover | HCNailpolishremover | B41 Beta | Drainable | Bathroom | Hydrocraft |
 | Nail Trap Blueprint | HCBlueprintnailtrap | B41 Beta | Literature | Blueprints | Hydrocraft |
 | Nailed Club | HCMasterclubnails | B41 Beta | Weapon | Weapons Bats | Hydrocraft |
 | Nailed Crude Bat | HCHomemadebatcrudenails | B41 Beta | Weapon | Weapons Bats | Hydrocraft |
 | Nailed Crude Club | HCHomemadeclubcrudenails | B41 Beta | Weapon | Weapons Bats | Hydrocraft |
 | Nailed Homemade Bat | HCHomemadebatnails | B41 Beta | Weapon | Weapons Bats | Hydrocraft |
 | Nailed Homemade Club | HCHomemadeclubnails | B41 Beta | Weapon | Weapons Bats | Hydrocraft |
 | Nails | Nails | 41.1 | Normal | items | Classic |
 | Napalm Bomb MK1 | HCNapalmbombmk1 | B41 Beta | Weapon | Weapons Flame | Hydrocraft |
 | Napalm Bomb MK2 Off | HCNapalmbombmk2off | B41 Beta | Normal | Weapons Flame | Hydrocraft |
 | Napalm Bomb MK3 Off | HCNapalmbombmk3off | B41 Beta | Normal | Weapons Flame | Hydrocraft |
 | Napalm Bomb MK3 On | HCNapalmbombmk3on | B41 Beta | Weapon | Weapons Flame | Hydrocraft |
 | Napalm Bomb On | HCNapalmbombmk2on | B41 Beta | Weapon | Weapons Flame | Hydrocraft |
 | Napkin | HCNapkin | B41 Beta | Normal | Kitchen | Hydrocraft |
 | Napkin Holder | HCNapkinholder | B41 Beta | Normal | Kitchen | Hydrocraft |
 | Navy Blue Trousers | Trousers_NavyBlue | 41.1 | Clothing | clothing/clothing_pants | Classic |
 | Needle | Needle | 41.1 | Normal | items | Classic |
 | Netting | HCNetting | B41 Beta | Normal | Papercraft | Hydrocraft |
 | Nettle Tea | HCNettleteamug | B41 Beta | Food | Herbalism | Hydrocraft |
 | Nettle Tea | HCNettleteaclaymug | B41 Beta | Food | Herbalism | Hydrocraft |
 | Nettles | HCNettles | B41 Beta | Normal | Foraging | Hydrocraft |
 | New Mexico Flag | HCFlagnewmexico | B41 Beta | Normal | Flags | Hydrocraft |
 | New Mexico Flag on Pole | HCFlagpolenewmexico | B41 Beta | Normal | Flags | Hydrocraft |
 | Newspaper | Newspaper | 41.1 | Literature | items_literature | Classic |
 | Newspaper Hat | Hat_NewspaperHat | 41.1 | Clothing | clothing/clothing_hats | Classic |
 | Newt | HCNewt | B41 Beta | Normal | Hunting | Hydrocraft |
 | Nichrome Heating Coil | HCNichromeheatingcoil | B41 Beta | Normal | Industrial | Hydrocraft |
 | Nichrome Ingot | HCNichromeingot | B41 Beta | Normal | Metalurgy | Hydrocraft |
 | Nickel | HCNickel | B41 Beta | Normal | Money | Hydrocraft |
 | Nickel Ingot | HCNickelingot | B41 Beta | Normal | Metalurgy | Hydrocraft |
 | Nickel Powder | HCNickelpowder | B41 Beta | Normal | Alchemy | Hydrocraft |
 | Nickel Sulfate Powder | HCNickelsulfatepowder | B41 Beta | Normal | Alchemy | Hydrocraft |
 | Nightstick | Nightstick | 41.1 | Weapon | items_weapons | Classic |
 | Nitric Acid | HCNitricacid | B41 Beta | Normal | Alchemy | Hydrocraft |
 | No Result | Nothing | B41 Beta | Normal | Trapping | Hydrocraft |
 | Noise Generator with Sensor | NoiseTrapSensorV1 | 41.1 | Weapon | newitems | Classic |
| Noise Generator with Sensor | NoiseTrapSensorV2 | 41.1 | Weapon | newitems | Classic |
| Noise Generator with Sensor | NoiseTrapSensorV3 | 41.1 | Weapon | newitems | Classic |
| Noise Generator with Timer | NoiseTrapTriggered | 41.1 | Weapon | newitems | Classic |
| Noise Maker | NoiseTrap | 41.1 | Weapon | newitems | Classic |
 | Noodle Soup | NoodleSoup | 41.1 | Food | items_food | Classic |
 | Norse Mythology | HCBooknorsemyths | B41 Beta | Literature | Books | Hydrocraft |
 | North Korean Flag | HCFlagnorthkorea | B41 Beta | Normal | Flags | Hydrocraft |
 | North Korean Flag on Pole | HCFlagpolenorthkorea | B41 Beta | Normal | Flags | Hydrocraft |
 | Notched Wooden Plank | PercedWood | 41.1 | Normal | newitems | Classic |
 | Notebook of Sheet Music | HCNotebooksheetmusic | B41 Beta | Normal | Music | Hydrocraft |
 | Nothing | HCPetrinothingzoom | B41 Beta | Normal | Microbiology | Hydrocraft |
 | NPK Fertilizer | Fertilizer | B41 Beta | Drainable | items | Hydrocraft |
 | Nuclear Biochemical Mask | Hat_NBCmask | 41.1 | Clothing | clothing/clothing_hats | Classic |
 | Nut | HCNut | B41 Beta | Normal | Tools | Hydrocraft |
 | Nut and Bolt | HCNutnbolt | B41 Beta | Normal | Tools | Hydrocraft |
 | Nut Cracker | HCNutcracker | B41 Beta | Normal | Kitchen | Hydrocraft |
 | Nutmeg | HCNutmeg | B41 Beta | Food | Food Condiments | Hydrocraft |
 | Nutria (Female) | HCNutriafemale | B41 Beta | Normal | Hunting | Hydrocraft |
 | Nutria (Male) | HCNutriamale | B41 Beta | Normal | Hunting | Hydrocraft |
 | Nutria Carcass | HCNutriameat | B41 Beta | Food | Food Meat | Hydrocraft |
 | Nylon Cloth | HCNyloncloth | B41 Beta | Normal | Tailoring | Hydrocraft |
 | Oak Leaves | HCOakleaves | B41 Beta | Normal | Foraging | Hydrocraft |
 | Oak Log | HCOakLog | B41 Beta | Normal | Trees | Hydrocraft |
 | Oak Sapling | HCOak2 | B41 Beta | Normal | Trees | Hydrocraft |
 | Oak Sprout | HCOak1 | B41 Beta | Normal | Trees | Hydrocraft |
 | Oak Tree Stump | HCOakstump | B41 Beta | Normal | Trees | Hydrocraft |
 | Oatmeal | Oatmeal | 41.1 | Food | items_food | Classic |
 | Oatmeal Cookie | CookiesOatmeal | 41.1 | Food | items_food | Classic |
 | Obelisk | HCObelisk | B41 Beta | Normal | Stoneworking | Hydrocraft |
 | Obsidian | HCObsidian | B41 Beta | Normal | Mining | Hydrocraft |
 | Obsidian Powder | HCObsidianpowder | B41 Beta | Normal | Alchemy | Hydrocraft |
 | Obsidian Spear | HCSpearobsidian | B41 Beta | Weapon | Weapons Polearms | Hydrocraft |
 | Oceanography Textbook | HCBookoceanography | B41 Beta | Literature | Books | Hydrocraft |
 | Odd Meat | HCZedsteak | B41 Beta | Food | Food Meat | Hydrocraft |
 | Oil Filter | HCOilfilter | B41 Beta | Normal | Auto | Hydrocraft |
 | Oil Lamp | HCOillamp | B41 Beta | Normal | Firecrafting | Hydrocraft |
 | Oil Lamp | HCOillamplit | B41 Beta | Drainable | Firecrafting | Hydrocraft |
 | Oil Press | HCOilpress | B41 Beta | Normal | Stoneworking | Hydrocraft |
| Oil Press | HCOilpress2 | B41 Beta | Normal | Stoneworking | Hydrocraft |
 | Oiled Plank | HCPlankoil | B41 Beta | Weapon | Carpentry | Hydrocraft |
 | Old Christmas Magazine | HCMagazinexmas | B41 Beta | Literature | Magazines | Hydrocraft |
 | Old Fashioned Donut | HCDoughnutoldfashioned | B41 Beta | Food | Food Donuts | Hydrocraft |
 | Old Fashioned Drink | HCDrinkoldfashioned | B41 Beta | Food | Food Bar | Hydrocraft |
