How to Make a Bone Knife in DayZ

Carve your blade using two bones or grind one against a boulder

You can make a bone knife in DayZ through two simple crafting methods. The first method uses two bones from your inventory, while the second method uses just one bone worked against a large natural rock. Both methods take roughly five seconds to finish and leave you with a functional, two-slot cutting tool.

If you have two or more bones in your inventory, you can craft the knife anywhere on the map without searching for special terrain. Follow these steps to make your blade:

1. Open your inventory screen and place a bone or a stack of bones directly into your character hands.
2. Locate another bone in your inventory pockets or backpack.
3. Drag that second bone directly over the bone resting in your hands until the prompt highlights, which is how you combine items in the game.
4. Close your inventory screen to return to the active game view.
5. Look at the center of your screen for the action prompt that reads Craft Bone Knife.
6. Press and hold your primary action button (left mouse click on PC, or the right trigger on console).
7. Hold the button steady while the circular progress wheel fills for about five seconds.

Once the circle finishes, your character plays a carving animation. The game consumes two bones from your inventory and places the new bone knife directly into your hands. If your hands are somehow full or glitched, look down at your feet, because the knife will drop straight onto the ground beneath you.

If you only managed to find a single bone, you can still craft a knife by using a boulder, which is a large natural rock in the game world. This method saves precious resources when you are starving and cannot find a second bone. Follow these steps to shape a single bone:

1. Place your single bone directly into your character hands through the inventory screen.
2. Walk up to any natural stone surface, such as a rocky coastal outcrop, a mossy stone in the woods, or a boulder sitting in a field.
3. Aim your crosshair directly at the rock texture until you see the prompt for Craft Bone Knife appear.
4. Press and hold the primary action button to start grinding the bone down.
5. Wait five seconds for the circular timer to complete.

This action grinds the single bone against the rough stone until it forms a sharp edge. The recipe consumes that single bone and rewards you with a fresh bone knife in your hands. Always crouch or hide in a tree line before starting either crafting recipe, because the scraping sound can attract nearby infected, and being stuck in the animation leaves you defenseless.

Scavenge bones without tools by checking beaches and gutting small kills

Finding your first set of bones creates a classic puzzle for a fresh spawn, which is a newly started survivor on the coast. You normally need an edged blade to skin an animal or human body to harvest bones, but you need bones to craft the knife in the first place. Fortunately, you can break this cycle early using several reliable scavenger tactics.

• Search coastal spawn points for player remains: Other survivors frequently die along coastal roads, lighthouses, and train tracks from starvation or fights with infected. Geared players often butcher these fallen survivors and leave their skeletons behind. Check near coastal water pumps and dock areas for abandoned piles of human bones.
• Hunt coastal chickens with your bare fists: Chickens and roosters spawn in almost every rural village and coastal backyard. Listen for their clucking sounds, track them down, and punch them once or twice with your fists or a blunt branch. While you cannot skin the bird with your bare hands, you can store the dead carcass in your jacket until you find another way to butcher it.
• Scrape paths for small stones first: If you cannot find any bones on the ground, look at dirt hiking trails, gravel roads, and railway tracks. You will spot small stones lying on the ground. Pick up two small stones and combine them, or scrape one small stone against a boulder to craft a stone knife. Use that temporary stone knife to butcher your dead chicken, which gives you raw chicken breasts and bones.
• Check hunting stands and coastal sheds for alternative tools: You do not need a dedicated hunting knife to skin an animal. Screwdrivers, sickles, meat cleavers, kitchen knives, and farming hoes can all skin a dead chicken or farm animal. Use whichever metal blade you locate first to gut the animal, harvest its bones, and build yourself a clean bone knife.
• Look near predator hunting zones: Wolves and infected occasionally chase down farm animals like sheep, goats, or pigs in open meadows. If you hear a commotion in the distance, wait for the area to clear and check the grass. You can often find an animal that died during the chaos, ready for you to harvest as soon as you get your hands on any sharp edge.

Once you harvest your first carcass, you will receive anywhere from two to ten bones depending on the size of the animal. A single chicken usually yields two to four bones, which instantly gives you enough raw material to craft two bone knives or one knife and several fishing hooks.

Rely on the bone knife for opening food and making rags

The bone knife is an essential survival tool that solves the two biggest killers in early coastal survival: starvation and uncontrolled bleeding. In everyday life at home, people rely on high-carbon steel premium knife block sets that keep a sharp edge through months of meal prep. In DayZ, you start with completely empty pockets on a windy beach, so an improvised bone blade is your best ticket to a warm meal.

Opening canned food is the most common use for your new knife. When you drag a bone knife onto a can of peaches, beans, or tuna, you will see a prompt to open the can. Unlike dedicated can openers that preserve 100 percent of the food, an improvised bone blade spills a small portion of the contents during the opening process. You will typically lose between 10 and 20 percent of the food to spillage. While losing some calories hurts when your hunger meter is flashing yellow, eating 80 percent of a can of beans keeps you alive until you reach inland farms.

Treating bleeding wounds is the other life-saving job for your bone blade. When an infected or another player hits you, your character starts bleeding out, which drains your blood pool rapidly. You can use your bone knife to cut spare clothing items like shirts, pants, bandanas, and raincoats into stacks of clean rags. Keep those rags in your quick-bar so you can bandage yourself within seconds of taking damage. Remember to disinfect those rags with alcohol tincture, iodine, or disinfectant spray if you find medical supplies, because bandaging with dirty rags carries a severe risk of blood infection.

Beyond food and medical needs, your bone knife handles several critical wilderness survival jobs:

• Gathering bark from trees: Walk up to any birch or oak tree with your bone knife in hand to peel off tree bark. You can use light birch bark or dark tree bark to craft improvised fire-starting kits.
• Crafting hand drill kits: Combine one piece of tree bark with a short wooden stick to craft a hand drill kit. This tool lets you start a fire without matches, lighters, or road flares.
• Sharpening wooden sticks: Cut a bush down with your hands to get a long wooden stick, then use your bone knife to sharpen the tip. You can spear raw chicken or goat meat onto the sharp stick and roast it safely over an open campfire.
• Carving bone fishing hooks: Combine your bone knife with an extra bone from your pack to craft an improvised fishing hook. Tie that hook to an improvised rope fishing rod to catch fish in coastal ponds and the ocean.

While the bone knife is versatile, understand what it cannot do. It cannot chop down large trees, split heavy logs into firewood, construct wooden walls, or dig deep garden plots. Attempting heavy forestry tasks requires an axe, a hatchet, or a saw.

Treat the bone knife as disposable and craft backups before it breaks

Improvised bone blades have very low durability compared to factory-made metal blades. The game tracks item condition through five stages: Pristine, Worn, Damaged, Badly Damaged, and Ruined. An item marked as ruined is completely broken and unusable, and it cannot be equipped or repaired under any circumstances.

A fresh bone knife starts in Pristine condition, but it wears down quickly with each task you perform. Opening three or four cans of food can easily knock the knife from Pristine down to Damaged. Skinning a medium or large animal like a goat, sheep, or cow puts heavy strain on the blade, sometimes degrading it by an entire condition tier in a single action. If you use the blade repeatedly without monitoring its health, it will shatter into a ruined state right when you need to bandage a bleeding wound.

You can also use the bone knife as a silent weapon against the infected. If you crouch-walk behind an infected without making noise, you will see a prompt to perform a silent stealth kill. Your character will grab the infected and drive the blade into its neck, eliminating the threat in one blow without alerting the rest of the town. However, performing a stealth takedown removes a large chunk of the knife durability, often between 15 and 25 percent per kill. Using your bone knife as a primary melee weapon in direct combat will break it in less than two fights.

The biggest drawback to the bone knife is that you cannot repair it. Standard metal blades like the hunting knife, combat knife, or kitchen knife can be restored using a sharpening stone. Bone knives do not accept sharpening stones in the game. Once the blade drops to Badly Damaged, you cannot fix it or extend its life.

Because the knife cannot be repaired, adopt a disposable mindset. Never carry just one bone knife without a backup plan. Keep a stack of extra raw bones in your jacket pockets. A stack of bones takes up only two inventory slots and holds up to ten bones at once. Carrying that stack ensures that as soon as your active knife turns ruined, you can step into the nearest bush, spend five seconds crafting a brand-new replacement, and continue your journey inland.

FAQs

Can you repair a bone knife in DayZ with a sharpening stone?

No, you cannot repair a bone knife with a sharpening stone in official DayZ. Sharpening stones only work on metal blades like hunting knives, combat knives, and machetes. Once a bone knife reaches a ruined state, it is permanently broken and must be discarded.

How many inventory slots does a bone knife take?

A bone knife takes up two vertical inventory slots (one slot wide by two slots tall). This tiny size makes it easy to carry in your pants, jacket, or a quick-draw knife sheath attached to your belt. Carrying extra raw bones takes the exact same two slots of space.

Can you craft a bone knife using only one bone?

Yes, you can make a knife from a single bone by taking it to a boulder or rock face. Put the single bone in your character hands, walk up to a large natural rock, and look at the stone surface. Hold down the action button when the prompt appears to grind that single bone into a sharp blade.

How much food do you lose when opening a can with a bone knife?

Opening canned food with a bone knife typically causes you to lose between 10 and 20 percent of the food contents due to spillage. While this is less efficient than using a specialized can opener, it saves far more food than using blunt tools like a crowbar, hammer, or axe, which can spill up to half the can.