This mod is not meant to fundamentally change the experience of vanilla minecraft, but rather to compliment it by opening up the possibilities of creating more farms and making more resources renewable. It should ultimately keep the same spirit of the vanilla game, but add more things for the more technical players to do. Some semi-automatically farmable items will be given methods to be fully automatic, and some non-renewable resources will only be given semi-afkable farming methods depending on the usefulness of the resource.
SFF now runs on Minecraft versions 1.16.3 and 1.16.4! Version 1.6 brings new pieces to shulker factories, and the possibility of branching paths. It is currently a beta version since there are still some generation issues caused by the branching paths, however the spawner tower will always generate correctly and there are no known compatibility issues, so don't let the fact that it's marked as a beta version scare you away!
Test your might by taking on shulker factories - an extremely rare structure from a long forgotten civilization which created the shulkers. And once the defenses are taken care of, use their factory to add to your collection of shulker boxes!
Added Shulker Factories - a new heavily guarded structure which generates at ~1/10th the rate of end cities, but has several items of interest to a redstoner including:
Added the End Explorer Map to End City Chests! By default, each chest in an end city has a 1/5 chance of containing a map to a Shulker Factory, so you no longer have to change the config or spend hours flying about The End to find one of these rare structures. Also, a number of config options were added so just about everything in the mod can be disabled or tweaked. Not everyone has the same set of mods installed, so now you can customize everything to fit in better with the mods you like.
In the spoiler tab below is an example of the valuable loot taken from a speed-raid on a shulker factory. The loottable is "cobbler:chests/shulker_factory_loot", so if you wish to tweak it or add your mod's loot to the loot table, you can edit it as you would any other loot table; no programming necessary! Below I have also included a formatted version of the loot table. If you are planning on playing the mod, I recommend exploring a factory and finding out what it contains for yourself as the items left in the factory tell a story about it's inhabitants, but I have included the list in case you wish to tweak the balance of the mod. Keep in mind that by default the factories spawn, on average, 200 chunks apart; about 1/10th as commonly as end cities.

A version of the full loot table edited to be more human-readable is below.
"weight": 10,
"name": "minecraft:chorus_fruit",
"min": 7,
"max": 24
"weight": 2,
"name": "minecraft:chests/end_city_treasure",
"min": 5
"weight": 1,
"name": "minecraft:piston",
"min": 1,
"max": 10
"weight": 1,
"name": "minecraft:redstone",
"min": 10,
"max": 64
"weight": 2,
"name": "minecraft:sticky_piston",
"min": 1,
"max": 5
"weight": 1,
"name": "minecraft:comparator",
"min": 4,
"max": 12
"weight": 7,
"name": "minecraft:purpur_block",
"min": 12,
"max": 42
"weight": 5,
"name": "minecraft:end_rod",
"min": 3,
"max": 8
"weight": 1,
"name": "minecraft:observer",
"min": 1,
"max": 4
"weight": 1,
"name": "minecraft:repeater",
"min": 3,
"max": 12
"weight": 1,
"name": "minecraft:redstone_torch",
"min": 12,
"max": 32
"weight": 1,
"name": "minecraft:redstone_lamp",
"min": 3,
"max": 12
"weight": 1,
"name": "minecraft:purple_bed",
"weight": 5,
"name": "minecraft:dispenser",
"min": 4,
"max": 14
"weight": 3,
"name": "minecraft:tripwire_hook",
"min": 1,
"max": 2
"weight": 3,
"name": "minecraft:magenta_stained_glass_pane",
"min": 7,
"max": 18
"weight": 1,
"name": "minecraft:map",
"weight": 3,
"name": "minecraft:lever",
"min": 1,
"max": 4
"weight": 1,
"name": "minecraft:hopper",
"min": 1,
"max": 4
"weight": 1,
"name": "minecraft:honey_bottle",
"weight": 1,
"name": "minecraft:end_crystal",
"weight": 1,
"name": "minecraft:elytra",
"function": "set_damage", //0 is broken and 1 is full durability
"min": 0,
"max": 0.4
"function": "enchant_randomly",
"enchantments": [
"mending",
"unbreaking"
"weight": 1,
"name": "minecraft:shulker_shell",
"min": 1,
"max": 6
"weight": 1,
"name": "minecraft:shield",
"function": "set_damage", //0 is broken and 1 is full durability
"min": 0.3,
"max": 0.8
"function": "enchant_randomly",
"enchantments": [
"unbreaking",
"vanishing_curse"
"weight": 7,
"name": "minecraft:popped_chorus_fruit",
"min": 4,
"max": 16
"weight": 1,
"name": "minecraft:poisonous_potato",
"min": 1,
"max": 3
"weight": 1,
"name": "minecraft:jukebox",
"weight": 1,
"name": "minecraft:furnace"
"weight": 1,
"name": "minecraft:fletching_table"
"weight": 1,
"name": "minecraft:fishing_rod",
"function": "enchant_randomly",
"enchantments": [
"mending",
"unbreaking",
"luck_of_the_sea",
"lure",
"vanishing_curse"
"weight": 3,
"name": "minecraft:ender_eye",
"weight": 7,
"name": "minecraft:ender_pearl",
"min": 1,
"max": 16
"weight": 2,
"name": "minecraft:ender_chest",
"weight": 1,
"name": "minecraft:dragon_egg",
"weight": 3,
"name": "minecraft:dragon_breath",
"weight": 1,
"name": "minecraft:daylight_detector",
"weight": 2,
"name": "minecraft:damaged_anvil",
"weight": 4,
"name": "minecraft:crafting_table"
"weight": 1,
"name": "minecraft:compass",
"weight": 1,
"name": "minecraft:clock",
"weight": 1,
"name": "minecraft:cartography_table"
There are 30 different hand-designed pieces, not including the obsidian tower, which are generated at random, and more will likely be added in the future! Some structure pieces are rarer than others, so you may still run into some new rooms on your second or third factory raid.
By default, they must place it adjacent to logs, leaves, a spawner, or other cobwebs (config has an option to allow the spider to place it anywhere)
Additionally, they will only start spinning a web in certain light levels (8-12 by default, inclusive)
If you want to support me and let me spend more time on mods and less time at work, my patreon is here. As always, don't donate what you can't afford; we're all just here to have fun and play some Minecraft!
The code for this mod is free to use under the MIT license because it's the most permissive license I know of in common use. If you want to use a substantial portion of the mod without having to include the MIT license, let me know. As long as you're acting in good faith and don't want to do something like post the mod as-is and say that you made it, I'll probably be fine with whatever you want to do with it. Just be cool and support the community :) Modpacks of course are free to use this mod however they see fit (but please include it in a way that attributes the downloads to this project page if you can. It would take a very extreme case to bother me, but if I'm not getting any downloads I'll think people aren't interested and halt development. It's unlikely that I'll ever get enough money from this to buy a cup of coffee, seeing people enjoy the mod is my payment). And in the unlikely case Mojang is reading this, use whatever you want from the mod!