Tutorials/Door-based iron golem farming

An Iron Golem farm is an easy way to acquire many iron ingots (and less useful poppies) with minimal effort after the initial setup. It is an artificial village (or several of them, spaced far enough apart to remain separate) in which golems are spawned and then either killed immediately, or moved to a holding cell (outside the village boundary, so that new ones can spawn in their place) for later killing. If you opt for the first method, you will either need to go AFK while camping out at the collection point, have a hopper collecting your items, or else check back periodically to collect your items before they despawn. This necessity can be avoided by using the holding cell method, which allows the golems to collect while you are working nearby, and then you can harvest them all at once when you are ready so that you don't miss any drops. If the farm is built inside the spawn chunk and fully automatic, it will operate at any time, making it highly efficient.

General requirements
Iron golems spawn naturally in villages (natural or player-made), provided there are 10 villagers and at least 21 houses (counted as doors). The chance of spawning is 1 in 7000 per tick, which averages around one every six minutes.

There are several ways to build an iron farm, but the decent versions seem to be the ones that use two floors in the golem-spawning zone(16 by 16 by 6), and keep all doors and villagers outside the zone, either above and below the center or in an outer "ring" on the same level. This is in order to maximize the number of available spaces for the golems to spawn in, which in turn will reduce the number of failed attempts, and keep the spawning rate as high as possible. This is much more effective than simply increasing the villager count to raise the golem cap, which only matters for the few seconds between the time when a golem spawns and when it is flushed out and killed. To further increase your output rate, you can build several separate iron farms as long as they are 64 blocks apart, and bring the golems or their drops to a central collection area. The most powerful iron farms are ones that overlap many villages. Tango Tek is the user who discovered the process himself. Since golems are immune to falling or drowning damage, the available killing methods are lava or suffocation (or both like docm77's video.)

Odds of a missed spawn occurring: The previous section is generally true but contains an invalid assumption about the odds. There are 512 valid spawn points in the 16×16×6 block spawn area. Making a farm with only ½ of the valid spawn points (256) does not reduce your chance of spawn by ½. This is because the game randomly "tries" to find a valid place to put a golem 10 times each time an opportunity to spawn a golem comes up. So, your chances become 0.5 for each of the ten tries. Missing a spawn in this case is equivalent to flipping a coin ten times and have all ten come out tails. It is .5^10 or .00098 which is just about one in a thousand odds. A better suggestion would be to use some of the area of the zone to rapidly move golems out of the interference zone so they do not halt further spawning. This is a much more likely occurrence than missed spawns if the golems can’t move out of the area quickly. This is not as rare of an occurrence as has been suggested.

Chances of a missed spawn are calculated as follows: ( 1 - ( valid_spawn_points / (16*16*6) ) )^10 * 100% So with 256 valid spawn points you will miss 16.2% of the spawns whereas 512 valid spawn points will only result in a loss of 1.7%.

Additionally, console players should note the 50 villager spawn limit, which will prevent the full population of certain farm designs.

Design by trunkz
Requires spawn chunks: no Iron per hour: 40 Scalable: yes Description: This is an older design by trunkz and one of the earliest to feature two spawning floors for greater efficiency. It uses several villager baskets and door pads and is a little outdated, but quite a good and efficient design for the time it takes to build.

This farm has been tested in Spigot 1.8. Extra care must be taken with breeding villagers as they no longer breed as easily as they did in earlier version. For testing in 1.8 the villagers were bred to a population of 20 on the ground before being transported to their cells (the individual villagers were transported to their cell by minecart, the other 18 went to their cell on a dirt ramp). The method given in the video will probably work if the breeding villagers are provided an ample supply of suitable food, e.g. carrots, potatoes or bread.

Design by JL2579 (tutorial by docm77)
Requires spawn chunks: no Iron per hour: 160 Scalable: yes Description: This design, originally created by JL2579, uses 4 spawning modules, with 2 modules per level, with doors surrounding the modules. This pattern could be repeated to fill a very large area with iron farms. The farm also features a lava system to damage the iron golems so that the piston suffocator works more quickly. Youtuber docm77 made this tutorial for the design.

Design by Nims
Requires spawn chunks: no Iron per hour: 38 Scalable: yes (you can build a second farm 80 blocks overhead to increase the spawning rates) Description: This design, by NimsTV, is slightly less efficient than JL2579's design. However, it is much simpler and easier to build, because the water streams are easier to configure and there is only one villager basket. The golem spawning area is larger than the farm, which is why JL2579 did not build his farm in this way. You have to block spawning anywhere outside the farm, if you intend to build several duplicate farms in an array.

Design by KaoticaDemon
The Iron Demon

Requires spawn chunks: no

Iron per hour: 38 - 15,314

Scalable: yes (you can build following the guide below. Choose anywhere between 1 and 403 spawn pods. Specifically created for XBoxOne Version).

Description: This design, by KaoticaDemon, was designed for the XBoxOne, intended to never break no matter if the chunks unload or the game is exited. It is mainly a method of utilizing optimal spacing of villages combined with a 20x8x20 farm design, not created by KaoticaDemon.

1.0 Preface and Index

1.1 Intro

1.2 Definitions

1.3 Knowledge Needed for

1.0

Preface

This will be a guide to optimal usage of the XboxOne Loaded Chunks, with various applied mechanics, to build the most efficient Iron Golem Farm that uses no redstone, as it never uses RedStone.

Although the Iron Titan and other farms are nice, they lack one thing. The indestructabiluty to survive ANY patch Mojang decides to create. This design works even when unloaded. All it will require to fuly optimized again is for the player to relocate themselves in the center chunk of the farm. (Just having the farm within Loaded Area).

The only way this farm will be broken, is if the Loaded Chunk Range is reduced (unlikely as that wouldbe regression), or if they change Village Boundary or Village Merging Mechanics (yet another change that would upset players, as it would destroy many metropolises and colonies.

******

1.1 Intro:

This Iron Golem Farm Yields a total of 1-403 Individual Villages (scaleable to each Individual Village)

Thus a "Maximum Yield" of 4030 Iron Golems, or multipled by the more unanymously accepted 3.8 Iron per Golem of

Or 15,314 Iron Ingots per hour.

The definition of "Maximum Yield" will be explained under Definitions.

This design is built for the Xbox One's load area.

Which encompasses in a Large World

29x29 "Chunks".

For more details of why this is the number of Loaded Chunks, please refer to the following link:

http://www.minecraftforum.net/forums/minecraft-xbox-one-edition/mcxone-discussion/2628039-minecraft-xbox-one-absolute-values-of-loaded-block

1.2 Definitions

Iron Golem Farm :

An automated system used to utilize village mechanics to automatically spawn, collect, and kill Iron Golems to in essence collect their drops of Poppies, and more importantly Iron Ingots. This is important as in theory, with the Console Versions of MineCraft having a finite sized workd, it is very possible to harvest ALL of the Iron Possible in a world.

Spawn Pod:

A specified design of an Iron Golem "Village" to utilize the most compact space, while creating a very simple to calculate Village Center.

Village Center:

The center point that is calculated by the Average of all Doors in a village. This is done based on the top of the door and by adding individually all of the coordinates for x, y, and z of every door within Village Boundaries to the amount, and then dividing by the number of doors.

Village Boundary:

Sphere

Defined by the

Village Center + Village Radius

This goes for all directions in the 3Dimensions. Equation given later to find 3D distances.

Village Radius: This has been tested and IS the official size.

The Greater of

32 blocks

OR the farthest door to the Village Center.

Chunk:

A 16X * 256Y * 16Z block area that is numbered and predetermined by the World Creation.

A guide to specifically find Chunk Boundaries and the Name for the Chunk you are is located in the link found in the Intro.

Maximum Yield:

This is a theoretical number for a Village to ALWAYS spawn an Iron Golem every 6 minutes. This has currently been used to identify Outputs of other Iron Golem Farm Designs, but is, in fact,

WRONG.

This is due to the Efficiency Formula used due to the fact, that MineCraft only "attempts" to spawn an Iron Golem every 6 minutes if the village meets the requirements of

-being loaded

-10 villagers

-21 houses (active doors).

It picks a block at random located in the 16*6*16 iron golem spawn area, and if it is valid, an Iron Golem spawns. If it is not valid, it picks another random block.

If it fails 10 consecutive times, it stops and tries the 10 attempts 6 minutes later.

A valid spawn area consists of a 3 wide, by 3 high, by 1 deep area with the 1 block depth being from north to south.

This is due to the fact Iron Golems ALWAYS spawn facing south.

The Efficiency equation is as follows

1 - (1- (# of valid spawn blocks / 1536)^10) *100%

The *100% is to show this is meant to be a percentage not a decimal point.

So for example

Nims Design is quoted at 38 Iron per hour. Which is the Maximum Yield,

But, when applying Efficiency,

The ACTUAL yield is only approximately 64.8% of that, being 24.648 iron per hour.

With these being these probability, to see this build Nims 12x12 farm. You will in fact see it will average to a number much closer to 25 per hour rather than 38. The longer you allow it to run, the closer that number will be to 25.

So mine is quoted where it is, but its actual yield will be calculated after this guide is posted, due to the additional calculations that will be required.

*****

1.3 Design

To start:

Identify which Chunk you wish to have as you center chunk, the one you will stand at while waiting on the farm to spawn your Iron.

Once you have this picked, mark the four center blcks of this chunk. In a coordinate system for that chunk, these wiuld be the blocks

(8,8) (8,9)

(9,8) and (9,9)

Block these a special color.

As long as you stand anywhere in this 16×16 chunk, all farms you build from here on will be loaded. However these four blocks form the center for your design. Even if you do not intend on using the full 403 village design, you may as well follow precise locationing so if you ever wish to add farms it will require absolutely no customization.

This center chunk will hose the centermost part of the 20x20 golem farms found for layers 2, 4, and 6. With 2 blocks hanging outside this chunk in all directions.

The meeting point if the lines of this 2x2 square you just made is

1) the village centers in terms of x and z for all villages above this.

2) the area you will wish to build your collection, killing, and sorting center.

Now you must know placement of layers and distances for subsequent villages.

Utilizing to bedrock, there will be seven layers.

Each farm (based on the 20x20x8 farm design) will be located in between the following Y coordinates

Layer 1

Top 256

Bottom 249

Layer 2

Top 219

Bottom 212

Layer 3

Top 182

Bottom 175

Layer 4

Top 145

Bottom 138

Layer 5

Top 108

Bottom 101

Layer 6

Top 71

Bottom 64

Layer 7

Top 34

Bottom 27

Now to understand the layers.

Layers 1, 3, 5, and 7 will consist of an 8x8 farm setup. The first and last farms will be a 18x18 farm and the middle 6 farms being a 20x20 farm.

This leads to 28 18x18 farms and 36 20x20 farms.

The alternative is 7 20x20 farms with a 16x16 farm at the end, leading 49 20x20 farms and 15 16x16 farms, but due to the Efficiency Equation, this would make the Overall Efficiency go down

This is due to the following efficiency per size of the farms

20x20 farm = 98.2% spawn chance

18x18 farm = 96.6% spawn chance

16x16 farm = 91.0% spawn chance.

Layers 2, 4, and 6 will have a 7x7 farm setup of ALL 20x20 farms, centered in the pockets of the adjacent layers.

This design is called compact packing of spheres or hexagons. (HCP lattice) with and ABABABA setup.

Now you must understand the 3D distance formula. This is a geometric equation. This is for the distances of the village centers to be greater than 64 to prevent village merging.

The distance between the points

=the square root of ( (the change in the x coordinate)^2 + (the change in the y coordinate)^2 + (the change in the z coordinate)^2 )

For simple terms. With a village radius of 32, the distance must equal 64.

So if x, y, and z coordinates must all change the same amount (which is our case), the value ALL 3 coordinates must change by to prevent merging is 37.

So if village center 1 is at (0,0,0) and village center 2 is at (37,37,37). They will NEVER merge.

This is why all y coordinates are in incrementa of 37.

Now i recommend you first village be at layer 2 with the hold of the spawn pod dropping on the 2x2 blocks you marked out earlier.

To find where your consecutive villages will be located, i recommend using a map, going to any of the one corners of your pod (use the map to see which corner you are in. Do this by facing out of the corner and see which way your arrow faces, should be NE, NW, SE, or SW ) and take down the coordinates.

Remember exactly where you stood.

Which corner that was and wjether you stood on the top layer or bottom layer, or for me in survival, i prefer which glowstone i stood on in which corner.

From these coordinates change all values by 37 in whichever desired direction you wish. (Or if you wish to build the pod directly above or below you, change the Y coordinate by 74 (2 layers) and keep the x and z the same.

Now once you have your new point, that point should be the exact point in this pod as it was in the last pod (ie same corner of the same layer of the pod/ same relative glowstone).

Now continue building all the pods you want as long as they do not exceed the limitations stated above.

To fill these villages with villagers you will need to break the villager cap of 50 that the XboxOne has. I have a guide on a way to do this, but since transport is still required, it may be easier to just telransport them from another area on the OverWorld that contains a villager breeder pod. My guide is for quickly producing 300+ villagers to free roam a town. I believe an unloaded villager breeder would be easier in this scenario.

Either way, my alternative guide to Infinite Villagers can be located at:

http://www.minecraftforum.net/forums/minecraft-xbox-one-edition/mcxone-discussion/2626790-truly-infinite-villagers-on-console

==Requires spawn chunks: no Iron per hour: 38 - 15,314  Scalable: yes (you can build following the guide below. Choose anywhere between 1 and 403 spawn pods. Specifically created for XBoxOne Version). Description: This design, by KaoticaDemon, was designed for the XBoxOne, intended to never break no matter if the chunks unload or the game is exited. It is mainly a method of utilizing optimal spacing of villages combined with a 20x8x20 farm design, not created by KaoticaDemon.==

1.0 Preface and Index

1.1 Intro

1.2 Definitions

1.3 Knowledge Needed for

1.0

Preface

This will be a guide to optimal usage of the XboxOne Loaded Chunks, with various applied mechanics, to build the most efficient Iron Golem Farm that uses no redstone, as it never uses RedStone.

Although the Iron Titan and other farms are nice, they lack one thing. The indestructabiluty to survive ANY patch Mojang decides to create. This design works even when unloaded. All it will require to fuly optimized again is for the player to relocate themselves in the center chunk of the farm. (Just having the farm within Loaded Area).

The only way this farm will be broken, is if the Loaded Chunk Range is reduced (unlikely as that wouldbe regression), or if they change Village Boundary or Village Merging Mechanics (yet another change that would upset players, as it would destroy many metropolises and colonies.

******

1.1 Intro:

This Iron Golem Farm Yields a total of 1-403 Individual Villages (scaleable to each Individual Village)

Thus a "Maximum Yield" of 4030 Iron Golems, or multipled by the more unanymously accepted 3.8 Iron per Golem of

Or 15,314 Iron Ingots per hour.

The definition of "Maximum Yield" will be explained under Definitions.

This design is built for the Xbox One's load area.

Which encompasses in a Large World

29x29 "Chunks".

For more details of why this is the number of Loaded Chunks, please refer to the following link:

http://www.minecraftforum.net/forums/minecraft-xbox-one-edition/mcxone-discussion/2628039-minecraft-xbox-one-absolute-values-of-loaded-block

1.2 Definitions

Iron Golem Farm :

An automated system used to utilize village mechanics to automatically spawn, collect, and kill Iron Golems to in essence collect their drops of Poppies, and more importantly Iron Ingots. This is important as in theory, with the Console Versions of MineCraft having a finite sized workd, it is very possible to harvest ALL of the Iron Possible in a world.

Spawn Pod:

A specified design of an Iron Golem "Village" to utilize the most compact space, while creating a very simple to calculate Village Center.

Village Center:

The center point that is calculated by the Average of all Doors in a village. This is done based on the top of the door and by adding individually all of the coordinates for x, y, and z of every door within Village Boundaries to the amount, and then dividing by the number of doors.

Village Boundary:

Sphere

Defined by the

Village Center + Village Radius

This goes for all directions in the 3Dimensions. Equation given later to find 3D distances.

Village Radius: This has been tested and IS the official size.

The Greater of

32 blocks

OR the farthest door to the Village Center.

Chunk:

A 16X * 256Y * 16Z block area that is numbered and predetermined by the World Creation.

A guide to specifically find Chunk Boundaries and the Name for the Chunk you are is located in the link found in the Intro.

Maximum Yield:

This is a theoretical number for a Village to ALWAYS spawn an Iron Golem every 6 minutes. This has currently been used to identify Outputs of other Iron Golem Farm Designs, but is, in fact,

WRONG.

This is due to the Efficiency Formula used due to the fact, that MineCraft only "attempts" to spawn an Iron Golem every 6 minutes if the village meets the requirements of

-being loaded

-10 villagers

-21 houses (active doors).

It picks a block at random located in the 16*6*16 iron golem spawn area, and if it is valid, an Iron Golem spawns. If it is not valid, it picks another random block.

If it fails 10 consecutive times, it stops and tries the 10 attempts 6 minutes later.

A valid spawn area consists of a 3 wide, by 3 high, by 1 deep area with the 1 block depth being from north to south.

This is due to the fact Iron Golems ALWAYS spawn facing south.

The Efficiency equation is as follows

1 - (1- (# of valid spawn blocks / 1536)^10) *100%

The *100% is to show this is meant to be a percentage not a decimal point.

So for example

Nims Design is quoted at 38 Iron per hour. Which is the Maximum Yield,

But, when applying Efficiency,

The ACTUAL yield is only approximately 64.8% of that, being 24.648 iron per hour.

With these being these probability, to see this build Nims 12x12 farm. You will in fact see it will average to a number much closer to 25 per hour rather than 38. The longer you allow it to run, the closer that number will be to 25.

So mine is quoted where it is, but its actual yield will be calculated after this guide is posted, due to the additional calculations that will be required.

*****

1.3 Design

To start:

Identify which Chunk you wish to have as you center chunk, the one you will stand at while waiting on the farm to spawn your Iron.

Once you have this picked, mark the four center blcks of this chunk. In a coordinate system for that chunk, these wiuld be the blocks

(8,8) (8,9)

(9,8) and (9,9)

Block these a special color.

As long as you stand anywhere in this 16×16 chunk, all farms you build from here on will be loaded. However these four blocks form the center for your design. Even if you do not intend on using the full 403 village design, you may as well follow precise locationing so if you ever wish to add farms it will require absolutely no customization.

This center chunk will hose the centermost part of the 20x20 golem farms found for layers 2, 4, and 6. With 2 blocks hanging outside this chunk in all directions.

The meeting point if the lines of this 2x2 square you just made is

1) the village centers in terms of x and z for all villages above this.

2) the area you will wish to build your collection, killing, and sorting center.

Now you must know placement of layers and distances for subsequent villages.

Utilizing to bedrock, there will be seven layers.

Each farm (based on the 20x20x8 farm design) will be located in between the following Y coordinates

Layer 1

Top 256

Bottom 249

Layer 2

Top 219

Bottom 212

Layer 3

Top 182

Bottom 175

Layer 4

Top 145

Bottom 138

Layer 5

Top 108

Bottom 101

Layer 6

Top 71

Bottom 64

Layer 7

Top 34

Bottom 27

Now to understand the layers.

Layers 1, 3, 5, and 7 will consist of an 8x8 farm setup. The first and last farms will be a 18x18 farm and the middle 6 farms being a 20x20 farm.

This leads to 28 18x18 farms and 36 20x20 farms.

The alternative is 7 20x20 farms with a 16x16 farm at the end, leading 49 20x20 farms and 15 16x16 farms, but due to the Efficiency Equation, this would make the Overall Efficiency go down

This is due to the following efficiency per size of the farms

20x20 farm = 98.2% spawn chance

18x18 farm = 96.6% spawn chance

16x16 farm = 91.0% spawn chance.

Layers 2, 4, and 6 will have a 7x7 farm setup of ALL 20x20 farms, centered in the pockets of the adjacent layers.

This design is called compact packing of spheres or hexagons. (HCP lattice) with and ABABABA setup.

Now you must understand the 3D distance formula. This is a geometric equation. This is for the distances of the village centers to be greater than 64 to prevent village merging.

The distance between the points

=the square root of ( (the change in the x coordinate)^2 + (the change in the y coordinate)^2 + (the change in the z coordinate)^2 )

For simple terms. With a village radius of 32, the distance must equal 64.

So if x, y, and z coordinates must all change the same amount (which is our case), the value ALL 3 coordinates must change by to prevent merging is 37.

So if village center 1 is at (0,0,0) and village center 2 is at (37,37,37). They will NEVER merge.

This is why all y coordinates are in incrementa of 37.

Now i recommend you first village be at layer 2 with the hold of the spawn pod dropping on the 2x2 blocks you marked out earlier.

To find where your consecutive villages will be located, i recommend using a map, going to any of the one corners of your pod (use the map to see which corner you are in. Do this by facing out of the corner and see which way your arrow faces, should be NE, NW, SE, or SW ) and take down the coordinates.

Remember exactly where you stood.

Which corner that was and wjether you stood on the top layer or bottom layer, or for me in survival, i prefer which glowstone i stood on in which corner.

From these coordinates change all values by 37 in whichever desired direction you wish. (Or if you wish to build the pod directly above or below you, change the Y coordinate by 74 (2 layers) and keep the x and z the same.

Now once you have your new point, that point should be the exact point in this pod as it was in the last pod (ie same corner of the same layer of the pod/ same relative glowstone).

Now continue building all the pods you want as long as they do not exceed the limitations stated above.

To fill these villages with villagers you will need to break the villager cap of 50 that the XboxOne has. I have a guide on a way to do this, but since transport is still required, it may be easier to just telransport them from another area on the OverWorld that contains a villager breeder pod. My guide is for quickly producing 300+ villagers to free roam a town. I believe an unloaded villager breeder would be easier in this scenario.

Either way, my alternative guide to Infinite Villagers can be located at:

http://www.minecraftforum.net/forums/minecraft-xbox-one-edition/mcxone-discussion/2626790-truly-infinite-villagers-on-console

Designs by Tango Tek
The Iron Titan

Requires spawn chunks: yes Iron per hour: 2600 Scalable: yes (watch video) Description: Tango Tek has discovered a bug in Minecraft that enables the placing of directly adjacent villages (only works after 1.8.1). All of his designs utilize this principle to layer 32, 64, or even 128 villages into a single iron farm, producing the most efficient iron farms ever created. His latest and greatest design, the Iron Titan, is modular, and can be easily scaled up in increments of 32 villages. Tango's recommended design has 64 villages which produces a whopping 2600 iron every hour. It can theoretically be stacked on top of itself to the sky limit, but that would obviously be very expensive and quite unnecessary (unless you are insane or running an ultra-large server).

Designs by DanielKotes
The Iron Towers

Requires spawn chunks: no Iron per hour: 1300 Scalable: no Description: Very similar to the Iron Trench, the Iron towers design layers villages one over each other to produce 32 villages. Villages will re-build if they are broken, not requiring any player intervention. At the moment it can only be built up to 32 villages in size, thus producing at most 1300 iron per hour if the full 32 village farm is built. Fortunately, the redstone in this design is much simpler than the older iron trench builds due to the village building process being done in one phase instead of two.

Its worth noting that many players using the Spigot server have found this to be problematic. In the comments of the tutorial is a conversion. Fundamentally Spigot uses slightly different timings in the creation and destruction of villages (or detecting and adding a door to a village). This coupled with a lower default entity-activation range means this can be difficult to get working in a survival server. (The timings Spigot uses are one of the features of Spigot that enables it to be more effective on low resources (CPU/Memory) per player).

Tutorial:

Design by Emonadeo
The Iron Bakery

Requires spawn chunks: yes Iron per hour: 500 each layer with 10 rows of doors Scalable: yes

A great advantage to this design is the customization. You can decide how big and efficient it gets by changing the number of the rings of doors and/or layers. It uses a similar door placement to the Iron Titan by Tango Tek (Look for it above). In fact it is relatively easy to build in survival mode and is also efficient on smaller multiplayer servers.

Showcase:

Design by Panda
The most important part of any farm is its spawning floor, both in regards to maximising spawning area and the speed at which it can remove spawned entities to be replaced. In the following video, Panda describes a unique spawn floor design that drastically increases both of these, to the point where small servers could just use a standard un-chained single village iron farm with this spawn floor to provide ample amounts of iron for the players. Combine this spawn floor with any of the other designs to drastically improve its output. (Spawnpads still work in 1.8).

Showcase:

Design by MCinstructabuilds
Requires spawn chunks: no

Iron per hour: 30 - 40 (depending on configuration)

Scalable: yes (As long as the second farm is constructed 70 blocks away)

Description: This design, by MCinstructabuilds, is not as efficient as some other designs. However, it is simple to build and lends itself to variation and disguise. The spawning area for the golems is 16x16, but can be made smaller by digging 8 blocks down around the edges if desired. The doors are placed equally around the spawning area, but specific placement can be varied. It is this varied door placement that allows the farm to be easily camoflaged. MCinstructabuilds provides three example disguises, a fort, a town, and a mining camp / Furnace. Unlike other designs the villagers are not kept contained. The Farm can be constructed easily and at ground level.

Tower design
This design is good especially for survival. It will get you about a stack every 2 hours. It's pretty efficient, but for faster farms, use one of the above.

Step zero - resources
To build an iron golem farm, you should have a fair amount of resources, such as cobblestone and wood, as well as a way to get villagers into it.

You will need:
 * at least 1100 cobblestone (about 18 stacks)
 * 64 doors (6 wood per 3 doors=128 wood planks or 2 stacks)
 * 18 water buckets
 * 1 lava bucket
 * 4 signs
 * 2 hoppers and 2 chests (This is for the option to use hoppers to collect items when you are away from the farm)

Step one - Building location
To build the Iron Golem farm you should:


 * Choose a good location. Don't build it far from your home or main base, because you want the golems to spawn even when you are not at the farm. An ideal spot is on top of your existing home or close to it. Remember, village doors need direct access to sunlight within 5 blocks straight ahead of them.


 * Gather the resources listed above.


 * Follow the instructions below to begin building the base.

Step two - Building instructions

 * 1.

Start by building a 4×4 cobble base.


 * 2.

Continue this until you have a tower that is 10 blocks tall. Next, break a 2×3 hole in the bottom so the golems will be able to go through.




 * 3.

Build out 7 blocks from the top of this tower to form an 18×18 platform with a 2×2 hole in the middle.




 * 4.

Build in 4 blocks from each corner, then 3 blocks diagonal in both directions to build a triangle.




 * 5.

Next build a 1 block wide platform around this so the platform is now 20×20.


 * 6.

Now build a wall with windows in it as show below.



This is how wide each of the holes in the wall should be:




 * 7.

Seal off the backs of the windows, and build some small cups to hold the villagers. The cups should be 4×4 on the outside, so there is 2×2×3 of air on the inside. Make sure that there are at least 10 villagers altogether.




 * 8.

Place doors against the back of the indents. This is to make the villagers think these are homes. Note: To place doors against the inside wall as shown, stand inside the indent, face the spawning area, look down and "place" the door on the block directly under your feet (works on PC up to at least 1.8.3). Don't place them sideways; this can cause them to be not counted as homes. it should look like this:



Note: every single door opens onto a blank wall. The villagers should not be going in and out of the doors; they are trapped inside their cups and can't leave.


 * 9.

Then place down 1 water in each of the 4 villager cups, and 2 water down in between each of the raised triangles to form this pattern:


 * 10.

Place 1 water on each of the triangles in the very back corner of the wall.

Now the top part is finished, the golems will spawn once there are 3 villagers in each of the holding cups. The next step is to build the golem grinder.


 * 11.

Build 4 blocks out from the bottom of the tower and 3 blocks up on each side, then place 2 blocks at the end of it to keep the golems from escaping.


 * 12.

Next, place 4 signs in a cup shape to hold the lava that kills the golems.


 * 13.

Now place the lava in the signs.


 * 14.

Place the last 2 water in the very back of the base, so the golems will get pushed into the lava.


 * 15.

Put down 2 hoppers going into a large chest for automatic resource collection (this is not required, but it is a good idea so you don't let any of the items despawn.)

Maintenance
Since villagers will turn into witches when struck by lightning (albeit it happens very rarely), it is sometimes needed to refill the villagers into the farm after a thunderstorm. But if the farm is not built inside the spawn chunk, you can just move away from the farm to let the chunk unload during a thunderstorm.