Gunpowder is the invisible fuel behind some of Minecraft's most satisfying activities — firework rockets for elytra flight, TNT for mass excavation, fire charges for decoration, and splash potion crafting. The problem is that creepers are notoriously difficult to farm efficiently because spiders and other mobs keep contaminating standard dark-room farms. A dedicated creeper farm solves this with one elegant trick: carpet placement. Spiders can't navigate over carpet-blocked paths to the spawning platform, so only creepers — which can — actually reach your kill chamber. The result is a farm that produces gunpowder at a rate that quickly outpaces any manual collection. Once built, this farm runs passively. Go mining for an hour, come back, and your chest overflows with gunpowder. This guide covers the AFK-friendly version: water channels do the herding, a drop shaft does the killing, and you stay safe the entire time.
The Intermediate rating reflects either multi-layered construction, a larger footprint that demands planning ahead, or simple redstone circuits. You should be comfortable with basic survival mechanics and resource gathering before starting. Budget extra time for iteration — not everything lines up perfectly the first try.
| Material | Quantity |
|---|---|
| Cobblestone | 128 |
| Dark Block (any solid) | 96 |
| Carpet (any) | 24 |
| Water Bucket | 4 |
| Hopper | 1 |
| Chest | 2 |
| Slab (any) | 4 |
| Cat (tamed) | 4 |
| Torch | 32 |
Total distinct materials: 9. Gather everything listed above before you start — mid-build supply runs break your momentum.
Start at the bottom. Place a chest and connect a hopper feeding into it. Above the hopper, place a slab at half-height. This is where creepers land and die from fall damage.
Above the kill zone, create a water layer in a 3x3 area with a center hole. Water should flow from all edges toward the center drop point. Creepers that fall from above get pushed into the hole.
Above the water layer, build a 7x7 dark spawning platform. Leave the center 3x3 area open (mobs fall through here into the water). Use any dark solid block — the darker the better for spawn rates.
Place carpet on the inner ring of the platform (one block from walls). This blocks spiders from spawning — they need a 2x2 space but carpet prevents it. Build 3-high cobblestone walls around the perimeter.
Stack a second dark spawning platform above the first, inside the walls. More layers = more spawning space = more gunpowder per hour. Place tamed cats on the platforms to scare creepers toward the edges.
Light up ALL caves and surface areas within 128 blocks to maximize spawns inside your farm. AFK at the collection point. Creepers spawn, get scared by cats, walk off edges, fall into water, get pushed to the drop, and die from fall damage. Gunpowder appears in your chest.
The creeper farm works by exploiting two mob behaviors simultaneously. First, Minecraft spawns mobs in darkness — the farm creates a large, completely dark platform far from any other light sources to maximize spawn rates. Second, the carpet trick is elegant: spiders require a 2x2 clear path to move, so alternating carpet blocks create a maze that spiders physically cannot traverse but creepers can walk through normally. This guarantees creeper-only spawning on the platform without any complicated spawn-proofing. The water channel layout creates a gentle current that pushes spawned creepers toward the collection funnel — passive, silent, and consistent. The fall distance to the kill chamber is calibrated to leave creepers at half a heart, so a single punch from the player triggers the drop and collects XP, or a full-drop setup kills them automatically. The farm's efficiency scales directly with how far away the player AFK platform is — the farther from other spawn-eligible locations, the more spawns flood into your farm.
Once you’ve completed the base build, try one of these modifications to make it your own:
Extend the drop shaft to 24 blocks for a full kill-height drop. Creepers die on impact and all gunpowder gets auto-collected into hoppers at the base — no player interaction needed. Add an AFK spot directly above the collection chest at the kill zone.
Build a second identical spawning platform 10 blocks above the first, with a shared water channel that merges both flows into one kill chamber. Doubles gunpowder production with minimal extra materials. Scale to 3-4 layers for industrial output.
Build the spawning platform underground at Y=0 or lower where chunk spawn caps work in your favor. Dig out a 30x30 area, carpet-proof it, add water channels, and connect to a surface-level kill chamber. Easier to build near base than a sky-high floating farm.
These are the issues players most often run into with this build:
If you enjoyed this guide, these builds complement it well: