REDSTONEPEDIA › Farms › Iron farm
Fastest iron farm (the most iron, module after module)
858 iron an hour · 706 blocks · 1.2 an hour per block · 61 iron to build · pair stack: two modules stacked, the upper one's golems falling into the lower one's lava blade
Villagers scared by a zombie summon iron golems; the farm kills them and collects their iron in a chest.
Runs 9 hours AFK before its storage fills. Lag: 13 entities alive at once, 10.5 hoppers per thousand iron an hour. Restarts by itself when you come back after days away. 6,897 blocks of room per module, 2 chunk columns in all. 35 minutes to build, 8 villagers moved.
858 iron an hour, 6,864 in a night AFK
858 iron an hourIron farm3D view loading (or not available in this browser)
Try it
Press play to watch it work: the villagers sleep at night and panic at the zombie by day, golems spawn and die, and the hoppers carry their iron to the chest; the top right counts the game's time, the golems and the iron. The magenta floor is where a golem can spawn, seen through the blocks (Spawn spots hides it). The chest tagged OUT collects the first copy's iron; every copy has its own chest under its last hopper. In the game, build it and wait near it.
How this design does it: 2 module(s); each: 3 scared and 0 blind villagers in 1-cell pods, a zombie in a boat, a bed observer and catalog timing part 0; golems spawn on a 6x6 pad 7 below the beds and fall through its dry hole into a fire-safe lava blade 22 below the beds.
Build it
Download .litematic Download the design as text
The .litematic opens in Litematica (Minecraft 26.3): every block of the design in one region. The text file is the same build written as plain text, block by block.
Comes loaded with 105 iron ingots and 16 paper and 105 poppy in its containers: the download includes them; building it by hand, put them in first. Pour in the water and the lava (4 bucketfuls) where the view shows them.
Blocks used: chest cobblestone cobblestone slab comparator crafter hopper lava lightning rod oak boat oak fence gate oak trapdoor observer red bed redstone torch redstone wire repeater torch villager water
What it is made of
Each part of this farm, what it takes to build, and the version of it this farm uses: follow a part to see its other versions side by side.
| part | this farm's | blocks placed | blocks dug | build time |
|---|---|---|---|---|
| Villager cage | bed-observer cage, 3 watching villagers | 214 | 0 | 15 min |
| Sleep trigger | its own · other versions | 16 | 0 | 1 min |
| Golem spawn area | 6x6 dry floor 7 below the beds | 116 | 0 | 3 min |
| Golem drop | open drop 14 blocks down to the kill | 204 | 0 | 6 min |
| Kill chamber | lava blade after a 15-block drop, fire-safe chamber | 94 | 0 | 3 min |
| Collection | its own · other versions | 2 | 0 | 24 s |
| Storage | sorter and iron-block crafter (named-paper filters) | 50 | 0 | 7 min |
| The whole farm | 696 | 0 | 35 min |
Details: how it works, measurements and properties
In depth
villagers scared by a zombie summon iron golems; the farm kills them and collects their iron in a chest
How to try it
Press play to run the farm. The villagers sleep in their beds at night and panic at the zombie by day, golems spawn, fall and die in the lava, and the hoppers carry their iron and poppies to the chest. The chest tagged OUT collects the first copy's iron; every copy has its own chest under its last hopper. The top right shows the game's time, the golems so far and the iron in the chest; the speed menu plays it faster or slower. Drag to look around, pinch or scroll to zoom.
Measurements
On Hard, through rain, thunder and lightning.
| metric | value | what it means |
|---|---|---|
| iron per hour per block | 1.21 | iron ingots an hour for each block you place |
| iron per hour | 858 | iron ingots an hour |
| iron range | 95% 844-871 | the range its rate falls in, 95% sure |
| golems per hour | 215.5 | iron golems an hour |
| seconds per golem | 16.7 | the time between two golems |
| share of ceiling | 90% | how close it comes to the game's limit: one golem every 30 seconds for each group of villagers |
| modules | 2 | groups of villagers that each summon golems on their own |
| iron per hour per module | 429 | iron ingots an hour for each group of villagers |
| kill | 18.55 s | how long a golem lives before the farm kills it, at the longest |
| kill tail | the longest 30.45 s: no golem outlived 1 min in 22,984 golems (95% bound 0.01% a golem) | |
| golems at the zombie | 3,148 of 22,984 golems targeted the farm's zombie | |
| neighbour sightings | 4,286 of 22,984 golems sensed by another group (5,306 sensings, 0.23 a golem) | |
| lips | none (no golem stands dry beside a current) | |
| restarts after a missed night | yes | whether it starts again by itself after a night its villagers could not sleep (rain at dusk, a storm, you away) |
| restarts after days away | yes (unloaded or not ticking | whether it starts again by itself when you come back after days away |
| back | by day or at night: the first golem 0.0-0.1 h after the return) | |
| rain | clear day 862 iron/h; rain day 854 iron/h; thunder day 853 iron/h | iron an hour on a clear day, a rainy day and a stormy day |
| lightning | about 0.0 iron lost per thunderstorm; no villager ever turned into a witch; the zombie's boat broken never; a fire that can reach the farm (its flammable blocks or mobs or drop path) never; site note: a fire on the site that cannot reach the farm never; AFK spot struck: never (a 7 x 7 opaque non-flammable roof over the player's column with its block 4 above the player's feet prevents it: a single block over its column does not); no natural flammable block lies on a fire's way to the farm; a skeleton trap horse on the farm never; a skeleton trap horse that triggers (within 10 blocks of the AFK spot) never (a lightning rod within 128 blocks topping its column takes the bolts: none then); lightning never breaks the farm; thunderstorms 1.4% of the time (5 min 10.55 s each on average) | what thunderstorms cost: the iron a strike burns, and how often a strike turns a villager into a witch, breaks the zombie's boat or starts a fire |
| thunder loss | 0.0 | iron lost for each hour of thunder |
| sunburn | never (the zombie never sees the sky) | whether the zombie can burn in daylight |
| fire | never | whether the lava can set the farm on fire |
| bill | 61 iron, 10 quartz, 8 villagers, 8 beds, 2 zombies | what it costs in survival: iron (hoppers, the bucket and every tool you need), quartz, villagers, beds |
| payback | 4 min | how long the farm takes to make back the iron it cost |
| build time | 35 min at late prices (696 placed, 0 dug, 1 lava trips, 8 villagers moved) | about how long the build takes: placing and digging its blocks, fetching the lava, moving the villagers in |
| time to an iron kit | 37 min (the build | about how long from starting the build to a full set of iron armour (24 iron), its own iron counted |
| then | 24 iron at the card's rate | |
| then | the trip to the chest) | |
| build minutes | 35.4 | |
| t kit minutes | 37.1 | |
| collecting | 0 s per trip to the chest (2 x its depth, 0 layers | |
| at | the access's speed) | |
| iron per hour sleeping | 858 | |
| volume per module | 6,897 | |
| entities alive | 13.2 | |
| entities peak | 16 | |
| tools | bucket 3 + iron pickaxe 3 | the tools you need and the iron each one costs: a bucket for lava and water, shears for leaves, an iron pickaxe for redstone dust |
| lava sources | 4 | lava source blocks to bring: one bucket trip each |
| materials | Nether: quartz in 10 blocks | the stage of the game its materials need: day 1, the Nether (quartz, slime, magma...) or the End |
| chunk columns | 2 | how many 16 x 16 chunk columns it covers |
| storage | 9.0 h (153 slots; 213 poppies/h) | how long its chests and hoppers hold the iron and poppies before they fill |
| hoppers per 1000 iron/h | 10.5 | hoppers for each 1000 iron an hour: each hopper costs the server a little work every tick |
| real game | yes, in rain and in thunder too | it works in the real game too, in rain and in thunder |
| redstone dust | 72 | the redstone dust its blocks take to craft (a repeater or a comparator 3, an observer 2, a piston 1...): redstone ore needs an iron pickaxe to mine |
Notes from its designer
2 module(s); each: 3 scared and 0 blind villagers in 1-cell pods, a zombie in a boat, a bed observer and catalog timing part 0; golems spawn on a 6x6 pad 7 below the beds and fall through its dry hole into a fire-safe lava blade 22 below the beds.
Properties
| Study | Mob farms |
|---|---|
| Kind | Fastest iron farm (the most iron, module after module) |
| Blocks placed | 706 |
| Box | 11×66×19 (13794 blocks of space) |
| Inputs / outputs | no input / OUT |
| Flags | variation |
| Design file | late-shared-kill-pair |
The design file
Design file (1374 lines)
# Iron farm: 858 iron an hour · 706 blocks · 1.2 an hour per block · 61 iron to build · pair stack: two modules stacked, the upper one's golems falling into the lower one's lava blade
# https://vjeux.github.io/redstonepedia/farms/iron/late-shared-kill-pair.html
# CIRCUIT: seconds per golem 16.7
name: obs0-s3b0-pad6f7x0-blade22-skn2stack30-void
circuit: mob-farm iron_ingot fastest
how: every module's golems fall down one shaft to one lava blade
restart: yes
port output: 4 -29 1
entity: minecraft:villager 0.5 0.5625 0.5
entity: minecraft:villager 2.5 0.5625 0.5
entity: minecraft:villager 4.5 0.5625 0.5
entity: minecraft:oak_boat 2.5 0.5 -6.8 {Passengers:[{id:"minecraft:zombie"}]}
entity: minecraft:villager 8.5 1.5625 -8.5
entity: minecraft:villager 0.5 30.5625 0.5
entity: minecraft:villager 2.5 30.5625 0.5
entity: minecraft:villager 4.5 30.5625 0.5
entity: minecraft:oak_boat 2.5 30.5 -6.8 {Passengers:[{id:"minecraft:zombie"}]}
entity: minecraft:villager 8.5 31.5625 -8.5
nbt: 3 -28 0 {disabled_slots:[I;0,1,2,3,4,5,6,7,8]}
nbt: 3 -26 1 {Items:[{Slot:0b,id:"minecraft:iron_ingot",count:64},{Slot:1b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron lock"}},{Slot:2b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron lock"}},{Slot:3b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron lock"}},{Slot:4b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron lock"}}]}
nbt: 3 -25 1 {Items:[{Slot:0b,id:"minecraft:iron_ingot",count:41},{Slot:1b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron filter"}},{Slot:2b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron filter"}},{Slot:3b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron filter"}},{Slot:4b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"iron filter"}}]}
nbt: 4 -25 1 {Items:[{Slot:0b,id:"minecraft:poppy",count:64},{Slot:1b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy lock"}},{Slot:2b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy lock"}},{Slot:3b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy lock"}},{Slot:4b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy lock"}}]}
nbt: 4 -24 1 {Items:[{Slot:0b,id:"minecraft:poppy",count:41},{Slot:1b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy filter"}},{Slot:2b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy filter"}},{Slot:3b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy filter"}},{Slot:4b,id:"minecraft:paper",count:1,components:{"minecraft:custom_name":"poppy filter"}}]}
origin: -1 0 -10
palette:
A minecraft:cobblestone_slab[type=bottom,waterlogged=false]
B minecraft:comparator[facing=north,mode=compare,powered=false]
C minecraft:chest[facing=north,type=single,waterlogged=false]
D minecraft:comparator[facing=south,mode=compare,powered=false]
E minecraft:comparator[facing=west,mode=compare,powered=false]
F minecraft:crafter[crafting=false,orientation=down_south,triggered=false]
G minecraft:crafter[crafting=false,orientation=south_up,triggered=false]
H minecraft:hopper[enabled=false,facing=down]
I minecraft:hopper[enabled=true,facing=east]
J minecraft:oak_trapdoor[facing=north,half=bottom,open=false,powered=false,waterlogged=false]
K minecraft:oak_trapdoor[facing=south,half=bottom,open=true,powered=false,waterlogged=false]
L minecraft:lava[level=0]
M minecraft:observer[facing=east,powered=false]
N minecraft:redstone_wall_torch[facing=north,lit=true]
O minecraft:oak_fence_gate[facing=east,in_wall=false,open=true,powered=false]
P minecraft:redstone_wall_torch[facing=south,lit=true]
Q minecraft:redstone_wire[east=side,north=side,power=0,south=side,west=side]
R minecraft:red_bed[facing=north,occupied=false,part=foot]
S minecraft:repeater[delay=1,facing=east,locked=false,powered=false]
T minecraft:repeater[delay=1,facing=north,locked=false,powered=false]
U minecraft:repeater[delay=1,facing=south,locked=false,powered=false]
V minecraft:repeater[delay=2,facing=east,locked=false,powered=false]
W minecraft:water[level=0]
c minecraft:cobblestone
h minecraft:hopper[enabled=true,facing=down]
l minecraft:lightning_rod[facing=up,powered=false,waterlogged=false]
o minecraft:oak_fence_gate[facing=north,in_wall=false,open=true,powered=false]
r minecraft:red_bed[facing=north,occupied=false,part=head]
t minecraft:torch
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layer 28:
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layer 29:
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.c.c.c
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layer 30:
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...A.c.c
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.rcrcr
.R.R.R
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layer 31:
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......cVMr
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cKcKcKc
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layer 32:
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layer 33:
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layer 34:
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ccccccc
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layer 35:
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........ccc
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ttttttt
ttttttt
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layer 36:
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........ttt
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..........l