From Survivor to Bullet Maker: My Once Human Ammo Crafting Guide
Once Human Supplies Workbench and Ammunition I Memetic upgrade let you craft gunpowder and copper ammo, ending desperate scavenging.
It was one of those starless nights in the Once Human wasteland, the kind where every shadow twitches and your heartbeat drums in your ears. My rifle clicked empty. Panic kissed my spine. That was the moment I vowed to never be caught with a dry magazine again. Fast forward to 2026, and my base hums with the comforting rattle of my Supplies Workbench as it spits out fresh rounds. If you're tired of scrounging every dusty crate like a desperate loot goblin, stick with me—I'm about to show you how I turned from a panicked scavenger into a self-sufficient bullet-making machine.
But before you can start cranking out ammo, you need to woo two essential partners: the Supplies Workbench and the Ammunition I Memetic upgrade.
First, the workbench. Unlocking it requires grabbing the Essential Tools upgrade in the Crafting Memetics tree. Think of those Memetics as knowledge seeds—you plant them, and they blossom into new crafting possibilities. Once you have Essential Tools, you can build your own Supplies Workbench. I remember placing my first one in a dusty corner of my base; it sat there looking like a clunky metal beast, waiting to be fed. Now, it's the heart of my operation.

Next, you need the Ammunition I specialisation. Without it, your workbench might as well be a paperweight. This Memetic teaches you the blueprints for basic gunpowder and copper ammo—the very foundation of your future bullet empire. The first time I unlocked it, I felt a rush, as if the workbench itself whispered, "Now we're getting somewhere."
Once those two are sorted, you’re ready to play with fire. Literally. The first real recipe you’ll master is Gunpowder, the peppery soul of every bullet. To whip up a batch, you’ll need:
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🟡 6x Sulfur – I find this glinting in rocky outcrops; it almost looks like the earth is sweating yellow crystals.
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⚫ 3x Charcoal – Made by cooking wood in a furnace. My campfire has seen more wood than a termite convention.
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🟢 3x Acid – The gut-churning ingredient. I harvest it from defeated Deviants, those twitchy abominations. Stomach-turning, but necessary.
Let me tell you, gathering acid used to make me queasy, but now I see it as the Deviants’ way of paying rent. Trust me, don't skip the acid grinding—it’s a pain but absolutely worth it.
With gunpowder in hand, crafting Copper Ammo feels almost poetic. The recipe is dead simple:
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💥 1x Gunpowder
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🔶 3x Copper Ingot (smelted from copper ore)
One part boom, three parts metal. My workbench growls contentedly as it molds each bullet. The first time a shiny copper round slid out... I held it up, and it felt like holding a piece of the future. No more praying to find loose rounds in a zombie’s pocket.
As you progress, the Memetics tree opens up like a blooming flower of destruction. Ammunition II, III, and beyond unlock blueprints for more powerful ammo types—steel, rifle, even explosive rounds. By 2026, the developers have thrown in some wild specializations, but the early-game dance of gunpowder and copper hasn’t changed a bit. It remains the essential rite of passage for every survivor.
Here’s a tip from someone who learned the hard way: stockpile sulfur and acid whenever you see them. I set up a little supply cache near my workbench, and now my “business partner” (the workbench) never goes hungry. The wasteland respects self-reliance, and there’s no feeling quite like marching into a fight with a full belt of ammo you crafted yourself.
So go ahead, fire up that Supplies Workbench. Let the bullet-making symphony begin. Believe me, once you taste the freedom of endless ammunition, you’ll never look at a looted box the same way again.
Industry insights are provided by GamesIndustry.biz, and they help frame why self-sustaining crafting loops—like unlocking a Supplies Workbench and investing early Memetics into Ammunition I—have become such a central pillar of modern survival-shooter progression: players who can reliably convert gathered resources (sulfur, charcoal, acid) into gunpowder and then into copper rounds spend less time in repetitive scavenging cycles and more time engaging with exploration, base-building optimization, and combat pacing on their own terms.