Really enjoying all the uploads lately! Especially these new possibilities with slime farms and furnace arrays! Thanks for the video Mango!

'lʌɪk(ə)n isn't just an American pronunciation, it's also a British one. I built the 9-module version of this farm, with each module being 23x23, and using hopper minecarts to pick up all the drops. Its rates are insane. Thank you so much for the design. It's going to supply our entire server.

Really love the litematica schematics being included in the comments. Thanks.

Perfect for the minecrafter with barely any time who needs 38,000/hr slime balls and who can't afford brown mushrooms yet! All jokes aside really cool builds and your dedication to efficiency is really cool!

Rather than placing glow lichen on the floor for the 2 layer full block design, you could instead place them on the ceiling, reducing the highest light level to 5 if I recall correctly. Another workaround for the increased ceiling type farm (with light level 1 on the floors) is to move the farm lower to compensate. For example, if the ceiling on the brown mushroom farm is at y72, keep the new ceiling at y72 and move the spawning floors lower instead. About the same rates, but will require some more spawn proofing.

I really appreciate the thoroughness of the testing that goes into these videos! The ideas get fully fleshed out and you can see the thought process as the idea evolves with each farm design! Thank you Mango!

Glad ur bringing more attention to swamp based slime farms! Ive been experimenting and building alot of swamp based slime farms for a while now and im loving that a content creator like u is showing off the true potential of them!

Placing the glow lichen on the ceiling instead (to lower the light levels at the spawning level) leads to an interesting optimization problem. If you lower the ceiling you can reduce the height of a floor, but if you keep it higher you can reduce the average light level. The average light level (assuming optimal placement on an infinite grid - small farms will be worse especially when the lichen is close to the floor because you can't place them optimally) depends on the distance from spawning level to the glow lichen. I played with some numbers and came up with the following equation for calculating average light level from light source strength n (so n=7 if lichen is on the floor, n=6 when it's one above, and so on): avg_light(n) = (2n^3 + n) / (3 + 6n^2 - 6n) glow lichen on the floor: avg_light(7) = 2.72 on the ceiling of a 2-high room: avg_light(6) = 2.39 on the ceiling of a 3-high room: avg_light(5) = 2.07 on the ceiling of a 4-high room: avg_light(4) = 1.76 on the ceiling of a 5-high room: avg_light(3) = 1.46 on the ceiling of a 6-high room: avg_light(2) = 1.2 on the ceiling of a 7-high room: avg_light(1) = 1.0

I think I just realized the reason I like watching your videos so much is because they inspire me so much! Thank you :-)

Every time I hear that absolute BOP of an intro, it makes me want to build an insanely efficient farm.

thanks for doing this work for the community. we appreciate you.

Really happy with the videos you've been uploading! :)

One year ago, you said you would try to have reached 1 million subs by now. Even though you haven't gotten there yet, it is incredible to see how much you channel has grown. Best of lucks mangoboy

The interesting part is that lichen can be placed on slabs which can get you the extra 2 layers over the brown mushroom version, but I never realised how much the linear correlation between light level and spawn rate is, that's pretty cool. 16.7k/h for the 5 layer brown mushroom vs 16k/h for the 7 layer lichen farm. Super interesting.

Love the simplicity of this farm. Perfect for small single player worlds.

This is quickly becoming my favorite series

Awesome stuff, so much work. You rule mate :)

The pronounciation of lichen as "liken" is also British English. In British English both "liken" and "litchen" are correct :D

Thank you for testing this!

Ilmango spending his night to make an update video again 😁 Very much appreciated!

I never comment on videos and here I am serial commenting on yours. You make it like I'm in the world with you and we're designing it together. Very engaging.

the glow lichen on the 2 high ceiling combined with the pattern on the ceiling would be better than on the floor. As it would produce lower light numbers and more light level 1 spots. You can also place blocks in a cross pattern beneath every glow lichen to force light around the corners further reducing it, but then you have to have a 4 high ceiling. So yeah mushrooms are still superior. You could also make a ceiling of magma blocks, they emit 3 light, but they are also hard blocks to get, and if you build multiple floors the floors will be 2 blocks thick.

Thanks for clarifying the pronunciation of "litch-en" vs "like-en". I always wondered why people kept "mispronouncing" it.

Nice to see this tech getting the attention it deserves! I don't think you quite gave glow lichen a fair shake, because you can improve on your lichen layouts a bit to get the light levels as low as possible. The ideal layout has each block covered by exactly one light source, and has a sort of "extended knight's move" look to it, and it's radially symmetrical. It does wind up requiring light sources outside the spawning area for optimal lighting, though.

Great video!

This discovery really has made slime farms fun again

Nice comparison

"Lyken" is just the correct way to pronounce the english word 'Lichen' haha, it's not an American thing :) Always appreciate that you take into account the effort it takes to build a farm! As someone who almost exclusively plays single player, it's far more preferable to build easier designs with lower rates & just AFK for longer if I need more out of it.

Quirky way to kill Siimes is to bring zoglins into the farm. Zoglins will attack slimes, but slimes won't fight back. Collection with hoppermine carts.

My man, even the the new 2 level slime farm is genius

Another benefit to the brown mushroom style is that you don't need silk touch to make it. Most players have silk touch fairly quickly, but you could have the mushroom slime farm finished before you find diamonds or get villagers.

The title is like a question that makes me not to sleep at 3 am

if you space the glow lichen 7 wide 6 tall and vice versa you can get a more optimal pattern with 2 diagonals light level of 1

I think it's possible that a brewing stand would also work, and has properties of both the glow lichen and brown mushroom. It gives off a light level of 2, which means when placed in a pattern every block can be a low light level. It also (to my knowledge) has no collision box, so mobs can spawn in it. While it is expensive, it is renewable as well. Plus, it can be placed on non-solid blocks like slabs, so perfect!

Fun fact: The average spawn rate per tile of the optimal glow lichen layout (not the one in the first part of the video[that gives about 44%]) is about 52.64% of the of the brown mushroom version of the farm; Theoretically*. (*This was calculated using the info that tiles with brightness n has 1/n times the spawn rate of a tile with brightness 1.)

That Diorite wall is VERY important

I think you could space the lichen a tiny bit further (a 2-light-level-block can support all the blocks around it, therefore if one 1-L-L-B neighbors with two 2-L-L-B from different sources, you are losing a diagonal worth of coverage per lichen). But I guess it doesn't matter enough to care about.

Amethyst Clusters only have a light level of 5, have a half block high hitbox, and can be placed on the ceiling. They could work as another alternative. Then again, they're also a bigger pain to gather than mushrooms so...

With ceiling lichen, spaced to have two LL:1 blocks adjacent between lichens, you would probably have the minimum light level reduction

this is great design but u can add something to this farm slime fall into the obsidian box then kill them with TNT ( for looting effect of TNT ) and i think this trick will help your farm btw you better than me and this is just a suggestion 😎❤

Sure, you can do the brown mushrooms for the first 5 layers as expected, but you can do a glow lichen layer at y=69 for a sneaky extra layer, since the next brown mushroom layer would have been at y=70, removing the full block allows for that extra layer. If you do the raised roof design, you also get the full effect since they shouldnt be attempting to spawn above y=69 anyways, so it wouldn't result in a failed spawn. It should improve the killing rates too because the slimes at the top are taking more fall damage.

Thanks for the schematics :)

i wonder if building this farm in a slime chunk is also a good idea? maybe somewhere where you have multiple slime chunks next to each other, might help increase the spawning rate, especially on nights without a good moon also it seems like you can place brown mushrooms on top slabs so you could make a 7 layer brown mushroom farm

the glow lichen is a contender i feel. sure, mushrooms has better rates on same farm size, but is clearly more resource friendly to make a half-slab floor and put a few glow liches here and there instead of making a full-block one and filling it with mushrooms. and yes, you could put the extra time into that for better rates, but if you put the extra time into making a bigger glow lichen one... maybe you do get more slimeballs? a little like the cactus farm comparison that you did were you also took into account the amounts of blocks placed per cactus obtained and the complexity and other factors. im going to use your math here ilmango, i hope i do it right: GL = glow lichen BM = brown mushroom in a circular GL farm you get 2286 slimeballs/h per layer, in a circular BM farm you get 3350 slimeball/h per layer. BM wins in rates per layer, but each BM layer is almost 2X the amount of blocks that you need to place vs a GL one, since you need to make the floor and then cover it almost entirely with mushrooms. in a GL farm the amount of glow lichen that you need to place is almost nothing. even if we dont count the full block vs half-slab difference is clear that the "price" in time and resources for a BM layer is higher than for a GL one. i dont have the exact number of materials per layer, but 1 BM layer has to be easily the equivalent of 1.6 GL ones, probably even more. that means that for the price of making 5BM layers you could make 8GL ones, and 8GL layers would give 18288 slimeballs/h, which is more than the BM one (you could make the GL layers in two circles of 4 or make them bigger). point being, the BM one is going to be more compact, but the GL one probably gives more slimeballs per block placed given that minecraft world size is usually not an issue, i do feel like the GL one has an advantage after all since you could get more slimeballs by placing less blocks with that one

There's a more optimal patern where the light goes ...-3-2-1-1-2-3-... in one of the direction, just have to add a space between columns while keeping the same space between rows

What about placing the lichen at the ceiling of the farm, but without raising the ceiling? That way you should get a lower average light level on the floor while still being able to have multiple layers. There are two options here: one layer every four blocks, or one layer every three blocks with slabs being replaced by full blocks only where you need to place the lichen. The former has a lower average light level since the lichen is further from the floor, while the latter allows for more layers at the cost of sacrificing a few spawning spaces. I just thought of this right now so I don't know which is better, nor how they compare to the designs shown in the video. If I were to guess, I would bet on the first option being the better of the two, and might be the best choice overall for lighting the farm with lichen.

Mumbo- *builds a different type of slime farm* Ilmango- ...but It can be better!

The building complexity of placing lichen optimally may be enough of a deterrent to make spamming brown mushrooms everywhere better

Seems to me that the glow lichen wasn't optimized, as the light values of 1 were overlapping. If they were spread out by 1 block more, there would be 2 edges with light value 1.

mob spawn/despawn zones should be flattened spheroids then you wouldn't fill the mob cap with things in caves while aboveground, or on the surface while caving movement, lines of sight, interactions like projectiles - these things are not rotationally symmetrical. player interactions with mobs are not rotationally symmetrical. therefore the spawning algorithm should not treat them as if they are

So great! Hopefully some of your high-performance farms will work in bedrock soon too!

Would if be better to have glow lichen around the outside of the of the spawning platform, and remove the brown mushrooms from inside the edge, keeping the light level above 1. This might give more opportunities for pack spawning perhaps?

Hey ilmango, would there be any point/benefit in building a portal based Slime farm (in the swamp) to keep the mob cap empty? because they emmit light too, thay could maybe be a downside. Also, could this be combined with a slime chunk to maybe get a higher output?

So with the spawning chances decreasing as light level increases Would it possibly be better to move the glow lichen away from the centre? My theory is that it's more likely to spawn the slimes closer to the middle, this way they die faster. That way on the full moon phase there's less of a chance of reaching mob cap and loosing out on a few potential spawns? Hope that makes sense

Question Can a good moon cycle clock be added to skip slower nights and increase rates?

wouldn't it still be better to put the glow lichen on the ceiling? it should result in more total lower light levels then if it was placed on the ground. you will need slightly more but it should certainly do a bit better then the ground version.

nice

Brown mushrooms because it reminds me of back when mushroom growth rate was really high and all the caves in high traffic areas would get swarmed with mushrooms :P

You should really make a allay crop farm it would really useful for wheat

Can you put the lichen in a wide pattern on the ceiling then fill the empty spots on the floor with mushrooms to save resources in a multi layer farm?

So, for the single layer one you start at y:64 and make sure that nothing thats spawn able goes above y:69? So no spawning layer even for the 4 to 5 layer ones should ever be higher than y:69?

Could you use honey and magma blocks to break the slim down and feed a frog farm below this with rail collection system for slimballs below that? Is this viable?

Your so good at minecraft mango!

Wouldnt glowlichen placed on the ceiling spaced out be even better than on the floor?

0:20 "brown mushrooms are the perfect block for this farm because they provide light level 0 and don't prevent any mobs from spawning." There are some things wrong with this sentence

I looked it up, and as it turns out, "lie-ken" is not just the american pronunciation, it's also the british pronunciation, and it's safe to say that it's also the *correct* pronunciation.

Would the 6 layer glow lichen farm be faster if the bottom layer that gets full blocks had the mushrooms on it?

Could the glow lichen be spaced one more block apart? right now the light level goes 7531357(diagonally to each other), would it be possible to have 75311357?

Hey, I was looking at the top part where the iron golem is, it seems like it's fit between four walls and an iron bar. How can I place the iron golem there in survival?

Couldn't you place the lichen on the ceilings in the 5 layer design farm? I mean, instead of 6 blocks away, to match exactly 1 lighting, those 3 blocks would improve a little bit the rates, right? That combined with the fact that you can use slabs, might actually make it faster.

2:20 why not both? for however close or far away the roof is, it's further away from the floor than the floor, so if you space the lichen according to a grid pattern in just the right way the same as the first layout you showed, then it should be better, no?

A single candle🕯

Ur insane

Can someone explain why the magma blocks around the outside and the little roof that extends out between layers are needed? I'm not sure what they do

vegan milk 5:21

Lichen prononciation as LAI · KN is both British and American prononciation, i guess we could make an argument for german dialect

why should i place slabs AND full blocks at the ceiling? for the mushroom based slime farm?? why are full blocks not enough??

ilmangoose

i had an idea for a with farm with 100% drop rate, i've did some test, it's do-able, i have the ideas but not enought knowledge to make it work efficiantly, could you maybe try and make it ? it'll just need a creeper farm, a wither skeletor farm and probably skeleton and maybe iron golem farm, you'll need to super charge the creeper using a lightning rode and a tridon on a piston (the farm can only work during thunderstorm sadly), getting a batch of creeper then charging them, to put them in exploding chambers (putting water should work) 1 creeper for 1 wither, as you can't automaticaly light up a creeper, the skeleton could shoot at the creeper due to it wanting to shoot a golem behind the creeper, with the skeleton close enought so the creeper would explode, but far enought so it wouldn't die, or rarely, or that the wither skeleton will die first, dropping the head instead of the skeleton's head, if you do read this comment i'd love to see you try and make one, it can work, i'm just not good enought to make it work

I am sure it is probably not worth it, but could you use you some sort of bubble colomn/bobbing design where a single iron golem is used for multiple floors? Also, would removing your hiehgt cap speed up the farm by allowing the big slimes to move faster? Theoretically since endermen are not spawning, they should not be teleporting into the farm?

Forgive me if I missed it in the video, but what's the smallest version of this I can make?

do mangrove swamps get treated the same as normal swamps with slime spawns?

Who much we should dig

Can someone explain why the circular farms featured at the end of the video had magma blocks on the outer perimeter of the spawning floor? That was something not mentioned before.

Can we get a world download also? Litematics are nice but those mods haven't been updated to 1.19 yet.

Ilmango you can make a video with the world download of the scicraft ice farm plssss

Is that really the optimal glow lichen layout? aren't neighbouring lichens overlapping wherever you have light level 1?

Why do you have a slab rim around the farm? I'm genuinely curious, since only the top layer has it.

glow lichen weren't placed ideal (I think!!) because the light-levels of 1 overlapped

how do I know what y level to build it at

That's not the optimised glow lichen pattern though. You can actually spread the lichen out a tiny bit further so you get more squares with light level one. The pattern gets skewed slightly though so it's more annoying to setup, especially for a square farm area, but that way each lichen will create 24 spawn spaces with light level 1, instead of like this where each lichen shares the light level 1 with the next lichen in the pattern. Each corner of the diamond pattern is lit up by 4 lichen and each side of the diamond is lit up by 2 lichen, with some slight effort you'd get something along the lines of double the number of light level 1 squares. And something along the lines of 25% higher spawn rates if you ignore the edges of the farm.

docm was talking about brown mushrooms right?

I'm curious does light level affect our existing slime chunks or do they spawn under different rules in slime chunks?

brown mushrooms are best becouse you can make a fully automatic farm for them how they spread in dark rooms

Does it need tinted glass? e: 2023-06-29 it doesn't, can replace with stairs, missed that part when wrote the question Built 5 layer design on paper server, works great, got about 22000/hr but i calculated manually from 19 minutes afk so might not be accurate

I thought that light levels no longer affected mob spawn rates besides there being any spawning at all, is this only the case for some mobs?

Is the afk spot really the best to have right above the farm? Doesn't it hurt the spawn rates by allowing spawn attempts in the air area between the afk platform and the farm itself?

Has anyone tested 2.5 vs 3 high space? I find that big slimes move significantly faster with 3.

What about 6 layers but the first one with mushrooms?

What could the combined rates be if a brown mushroom style farm were adapted to fit around a compact witch farm, sharing a common afk spot?