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Gold farm mechanics


This article explains the mechanics behind the gold farm on pure, and some general mechanics associated with gold farming in minecraft.
Hello fellow Minecraftians,

In this article I’d like to explain the mechanics surrounding the gold farm I build on the Pure and Monarch server.

First of all, how does one farm gold?
Well as some of you might know Zombie Pigman have a chance of dropping gold nuggets when they die. So it'll have to be some sort of zombie pigman farm.


But how do you get enough pigman together for the farm to be efficient?
You can build a “common” mob farm in the nether, so pigman will spawn naturally in it, the downside of this is the mob cap. (if there are too many mobs around, no new ones will spawn)
A more efficient way is building it in the overworld using nether portals. Every portal block (the purple field inside the obsidian frame) has a chance of spawning a Zombie Pigman. The portal blocks don’t check for the amount of mobs in the area. This allows a greater build up of Zombie Pigman and thus is more efficient.


What size should you use?
There are a few things to take into account when thinking about the size. Sure, more portal blocks means more Pigman will spawn. The problem is mobs stop moving if they are too far away from a player (with default settings this is 32 blocks).
A farm stretching 200x200 blocks wouldn’t be much faster than a farm stretching 64x64 blocks. Also take into account that large amount of portals will create lag, so don’t overdo it!
The gold farm i designed is 49x49 blocks. The hight should always be the max. portal hight (23 blocks including both obsidian blocks).
To minimize obsidian use, you can use portals size 23x23 only, i didn't do so to keep things symmetrical.


Where should you place the kill room?
The kill room should be very close to the bottom level of the portals. The reason for this is to get the most Pigman to move when you standing in the kill room.Second, Pigman get angry when you hit one of them, so you should make sure all angry Pigman run straight into the mob transportation system (explained later), so they don’t keep running around in the farm, but get killed asap instead. In my design, the kill room is in the center of all the portals, very close to the bottom of the portals.


How do you get the mobs from the portals to the kill room?
To get the Pigman to move out of the portals, place signs (or trap doors) allong the bottom blocks of the portals.

Underneath the portals is a water system, all spots have running water, and they all run into the center of the farm.
On every side of the kill room is an entrance where the Pigman enter the mob elevators. (basically a tunnel upwards with water and signs). On top of the elevators is a connection platform where all elevators are directed to the same block.
This block should be the start of their drop down (to kill drop them 23+ blocks, to damage drop them 21 blocks).


Pigman are dangerous creatures, especially if they have full health. So you must make sure no pigman can escape the farm, or you’ll be in a lot of trouble. That’s why you should first build the entire farm, double check if there is no way for the pigman to get out (including the baby pigman), before you light up all the portals!

About the design:
The design I’ve come up with has 72 nether portals, each one 9x23 blocks (including the obsidian border). Every portal has 7x21=147 portal blocks (the purple blocks in the middle) so in total there are 10584 portal blocks. I used 6 mob elevators (4 normal elevators and 2 baby elevators). Also a switch controls two options: damage mode (xp farm) and kill mode (afk farm).
The design has portals with 9x23 size because of the water mechanics, since water flows 8 blocks it makes the transportation system a lot easier. Finally the design also allows you to switch between afk and damage mode. The trick is to make the elevators just high enough so you can put the kill room at the bottom level of the portals.


If you like to see one in action, the gold farm on the Pure server is the easiest one to check out (since the Monarch farm is underground and protected by towny).
To check it out, got to the Pure server and visit my base (/res tp KinoShop), the farm is upstairs!


For more information, contact Kino :)

Edit:
I've started a Let's Play series on single player vanilla minecraft, in this series I'm building a Gold/XP farm using these principles. The design is a little different to make it more efficient and increase the speed.





For the next part, check the comments below :)


8 Comments

Question for you sir...

Does Residence Flag Monsters False stop pigman from spawning?
Photo
Newstylz1983
Jul 29 2014 11:31 AM

If you do not allow mob spawns in your town then yes that is correct, if set to True mobs will be allowed to spawn in your town.

I built a gold farm in Lucid on monarch with comparable stats if someone wishes to see one on monarch. It fits in a 23x23 area thanks to portals being able to be placed directly next to each other. Theoretically, it could be repeated 4 times in a square and have a kill room in the center as in Kino's model so all spawns would still be within 32 blocks. Would be incredibly overkill though XD

 

Also, you do not need to place trapdoors/sign on every block on the bottom of a portal. I placed 3 equally spaced trapdoors over the total 21 blocks (bottom of the portal) and their pathfinding always takes them over the nearest one.

 

Also, dropper elevators are the bee's knees.

How long did it take you guys to mine that many blocks?

Not sure how long he took: but if you're efficient about it it only takes a few hours at most.
 

Can't remember how long it took to mine (it's been about 11 months since i've build it).

 

But I probably did it in a few days, since I was very new on the server at the time and didn't care too much about efficienct mining.