Shortly after I started on the server I decided I needed a slime farm. I wind up building a lot of stuff that needs sticky pistons so I have need of a steady supply. I’d built one on my xbox world and it was a boon to my machine building activities. Sadly the one on my xbox world, while nicely appointed, was totally manual. I had to park myself X blocks away so the slimes would spawn and just wait. Every hour or two I’d flip over and kill the slimes that were there. But this is Minecraft on the PC with fancy stuff, there had to be better out there.

Perusing youtube without having to put “xbox” in my search got me to some interesting vids. I was looking as much for the state of how slimes spawn in MC as for actual designs since the xbox is several major versions behind the PC. Then I came across this video by xisumavoid…

It had everything I liked. Passive automatic killing, no fiddly circuits that get messed up, nothing that would seem to be clogged, I could just make it and forget it. Plus it had that end-of-the-segment-mythbusters-how-can-we-make-this-explode vibe going on if I built the whole thing. As luck would have it, I happened to have built my house on top of two adjacent slime chunks. I wouldn’t even need to journey over hill and dale to get to my slime farm, just go downstairs. And two chunks would make the design twice as insane.

To be perfectly honest this project drove a lot of my other builds early on. I had to make my own iron farm if I wanted to do those hopper rings (and mine had to be even more hopper-ful since it was two chunks). A tree farm was needed to provide industrial quantities of wood. A stone generator was needed to keep my environmental damage to a minimum while getting building material. Etc, etc.

My wife had gotten a bit bored with branch mining and asked if there was anything I needed her to do. I showed her the video and said that I could use help digging out the hole. My plan was to dig up to the top of the slime spawnable area and just leave it open, filling in a floor as I got the materials. After 20+ years I really should have known her better. 24/7 afk to keep the iron farm producing, lots of digging and chopping, and in not quite a week we were finishing it up.

It is two chunks and a bit long and a chunk wide. There are fully 7 spawning floors that range from y6 to y37. Each floor is ringed by hoppers that are 1-3 hoppers deep for a bit over 200 hoppers per floor. Near the center point of the two chunks there is the main gathering column that sends the slime balls down to the collection point. That main pipe is fed by each floor and is a 30ish block high alternating hopper/chest column with everything feeding into a double chest at the bottom.

The farm has been flawless. As we go about our daily activities in or near the house, the slimes spawn, jump to the cacti, and obediently die. By the end of construction I had gathered more than three double chests worth of slime balls (likely more than I’ll ever really use), and has been quietly filling up ever since.

When the main down-pipe got full up to the third floor I thought it might be time to do something about it. The thought of having to schlep slime balls up that long access ladder was just annoying. This is minecraft, there’s a machine for just about everything!

So today I built myself a 5-double chest storage silo up at floor level with my house and proceeded to build a suitable item elevator to get the slime up to it. As with everything associated with the Slime Farm of Insanity, it is huge and a half. Specifically the first dropper is on y4 and the last dropper is on y63 (59 droppers tall). Redstone in place, test stack of dirt sent aloft, I hooked up the final hopper to my slime-pipe network.

Something like 5 hours later, it’s still lifting slime balls.

I’ve filled the 5 double chests in the silo and only at that point did the slime level finally drop below the third floor of the farm. I’m expecting at least half of the droppers in the tower to get full as well since there are at least 3 more double chests worth down there.

I think I might open a shop for springy blocks when the next version hits.

The attached pics:

The first one is a floor of the farm from one corner (my wife likes jack-o-lanterns for lighting)

The second is the dropper shaft. That white dot you can barely see in the middle is the comparator at the bottom of the stack. Each lapis block you see represents 2 droppers (a block every other dropper).

The third one is a shot of the top of the dropper tower and the storage silo from the back. Every last thing you see there that can hold things is full of slimeballs…

Good grief, never edit a post here. Noticed a typo and went to fix ONE character. It stripped all the formatting out (or rather reduced it to code tags) and turned it into Wall-o-Text.