Spider Farm
A spawner-based spider farm that uses water streams to push spiders into a kill chamber. Produces string, spider eyes, and XP. One of the simplest farms to build around a dungeon spawner.
Overview
The Spider Farm is a farm build whose job is producing a steady supply of one resource with little or no manual labour; form follows function here, so the layout is dictated by how it works rather than by looks. At 9x6x9 blocks (9 wide, 6 tall and 9 deep) it is compact, covering a 81-block footprint on the ground.
It is rated beginner, meaning the techniques are basic block placement with no redstone timing or rare materials required, so a new player can finish it without prior building experience. Following the 10 steps below, plan for about 30-45 min. This is a survival workhorse for string and spider eyes: once the Spider Farm is running it keeps producing whether you are standing there or off mining elsewhere within simulation distance.
The bulk of the work is the 64 slabs that form the main body, alongside 5 different materials in total (about 76 blocks and items all told). Items move through it on hoppers, feeding the string and spider eyes into a collection chest without any wiring to time. There is no dedicated light block in the core list, so add torches or lanterns yourself to keep it mob-safe after dark.
Materials Needed
Gather the 64 slabs first, since it is the most-used block; the remaining 4 materials are accents and fittings used in smaller amounts. Mine roughly 10-15% extra of the main block to cover mistakes and a few decorative changes on a build this size. Make sure the hoppers that move items are crafted ahead of time, as those are the pieces most likely to be missing mid-build. Quantities are sized for the dimensions shown, so scale them up proportionally if you build a larger version.
| Material | Quantity |
|---|---|
| Slab | 64 |
| Water Bucket | 2 |
| Hopper | 4 |
| Chest | 2 |
| Sign | 4 |
Click any material to view it on the Items database.
Step-by-Step Overview
A high-level construction order for the Spider Farm, from the ground up. Each phase below covers several of the 10 in-game steps.
- 1Pick the spot the Spider Farm needs — a valid spawning location for the mobs it targets — then clear it and build the hopper-and-chest collection layer first so no drops are ever lost.
- 2Build the compact 9x9 platform and walls that hold the mechanism for the Spider Farm in place.
- 3Set up the working part of the Spider Farm — a spider spawner darkened and funnelled — which is what actually produces the string and spider eyes.
- 4Light or darken precisely: the spawn space for the Spider Farm must stay at the light level the target mobs need, while every surrounding surface is lit so nothing else spawns and steals the cap.
- 5Build the AFK or harvest spot, run the Spider Farm for a full cycle, and time the string and spider eyes output before you rely on it day to day.
Build Tips
- 1Spiders can climb walls so use signs or water to prevent escape.
- 2Place water sources on opposite walls to create a funnel toward the center.
- 3The kill point should let you hit spiders without them reaching you (1-block gap).
- 4String is useful for bows, wool, and scaffolding.
Tips & Variations
The Spider Farm has no light block in its core list, so add torches, lanterns or sea lanterns yourself: light every interior tile and the ground around it so nothing spawns on or beside the build overnight.
To resize the Spider Farm, keep its 9x9 proportions and grow both axes together; stretching one direction alone tends to make it look thin. A half-size or double-size version both work as long as you scale the 76-block material list to match.
For a different look, swap the slab in the Spider Farm for another palette that fits your biome: the shape stays identical, but the colour and texture of the main block changes the whole feel of it.
The most common mistake on the Spider Farm is a leak in the collection path; trace it and confirm every hopper, water flow or drop chute actually feeds the chest before you leave it producing string and spider eyes unattended.
Frequently Asked Questions
How hard is the Spider Farm build?
It is rated beginner, meaning the techniques are basic block placement with no redstone timing or rare materials required, so a new player can finish it without prior building experience. It is laid out in 10 steps and takes about 30-45 min to finish.
What blocks do you need for the Spider Farm?
The main block is slab (around 64), and the full list runs to 5 materials — mostly slab, hopper and sign. Altogether that is roughly 76 blocks and items; the complete table with exact counts is above. Item transport uses hoppers.
How big is the Spider Farm?
It measures 9x6x9 blocks — 9 wide, 6 tall and 9 deep — which is compact and takes up a 81-block footprint. You can shrink or enlarge it by keeping those proportions.
Is the Spider Farm survival-friendly?
This is a survival workhorse for string and spider eyes: once the Spider Farm is running it keeps producing whether you are standing there or off mining elsewhere within simulation distance.
Does the Spider Farm work on its own once built?
Largely, yes — after setup the Spider Farm keeps producing string and spider eyes as long as you are within simulation range; just check the collection chest now and then and top up anything it consumes.
What makes the Spider Farm different from similar builds?
It is best understood through its focus on spider, string and spawner. Those traits drive the material list and layout described above, and are what set this farm build apart from a generic string and spider eyes build.
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