History of the Hardest Level Ever Made (Geometry Dash) 

What is your favorite impossible level?

As a victor of the infamous top 0 challenge "stereo madness and polargeist 3rd coins 10x" I can confirm that nessus is around 3* difficulty

crazy to think that old impossible levels are becoming possible now due to the community slowly getting better and better at the game

0:14 the music of "Resurrections" from the wholesome game 'Celeste' gave me some peaceful nostalgia, thanks for that :)

I don't normally find myself watching GD documentaries like this, but wow, something about the way you presented everything had me hooked. The editing, your calm and not over the top speaking, the way information was presented, this video was incredible, awesome work!

I’m honestly terrified of what 2.2 impossible levels will look like

The GD Community is crazy with this stuff... Also great content. Keep going!!!

Note that the bots do not play the level for you automatically. It is needed to create a macro beforehand through practice mode and using speed hacks and then having the bot run it through It doesn't play it by itself through AI

As the original maker of the go back to 11 cyclolcyc meme, I will say I recently found out that you can actually realign at 61%, since the green orbs before the portal allow you to enter it in so many different ways. "go back to 11" still sounds better though 11 is still very important though, for gaps at 15, 16, and 27. either one of them will be impossible or there will be a combination.

good video, two small issues, the first one is that back on track is actually is near impossible on 8 fps, so it should be here. the second issue is that i am living inside your walls.

NOTE: This level was made by multiple people! (Skubb, Ukarla, Illuminati65, TiO2, WunJo And EulerNum) good job on making such a confusing and unfathomably difficult ‘level’ (@_@) If anyone wants to know how this level works, Here's the long big brain explanation if you want to read it: The level abuses something called the X position limit, a barrier that makes your position stop updating after reaching a certain distance into a level (basically freezes you in place). This limit occurs closer to the origin, the higher your FPS. For example, it's around 33 hours into a level for normal speed and 60FPS, but here, because of 5 million FPS, it occurs 256 units = 8.5 blocks into the level (30 units is 1 block) The level uses this high FPS to its advantage by forcing you to freeze before a wall. While frozen, you have to continue spamming in one of the tightest UFO gaps (made by Illuminati65, works on 5mil FPS). Inside the gap there are exactly 322560 multi activate black orbs (in this video it's only one as it lags way too much). Multi activate orbs can be activated only once in a single frame, so by doing a double click you can click the orb once, and then jump right after, and the next frame the orb can be activated again. In here though, instead of double clicking you have to click all the 322560 orbs in one frame so none of them can be clicked again, and then jump with both players. You go up for 2 frames and then down for 1 frame by using the orb. You have to spam like this for a very long time. Once you're stuck in that gap, a spawn trigger loop will activate and add 1 to a counter every 4 seconds (any higher value will break on FPS that high). The counter consists of 1098 pickup and instant count triggers stacked on top of each other (it uses all available groups). When the 1st counter reaches 2147483647 (the 32-bit integer limit), it overflows and loops all the way back to -2147483648, and eventually goes back to 0 (or 4294967296). Whenever it reaches 0, it adds 1 to a 2nd counter, which again overflows and goes back to 0. This adds 1 to a 3rd counter etc. It repeats until the 1098th counter goes back to 0. In total this process finishes after 4294967296^1098*4 seconds. X pos limit depends not only on your FPS, but also on your speed. On slow speed it's at 256 units (8.5 blocks), but on 4 speed it's actually 512 units (17 blocks). So when the last counter reaches 4294967296 and everything gets toggled off, you can just jump up and hit the speed change to extend the x pos limit beyond the wall, so you're able to move again and complete the level. The level needs around 537603333333 CPS, and its total length is around pastebin.com/gXdPhtLe seconds (a number with over 10k digits) In this video it's shortened for showcasing purposes.

Congratz on you getting this far man! Ik u since the day u didn't even made this youtube channel, I've been honoured of u getting so far in this journey, hopefully u will hit 69 subs next!

congrats! i ve been here since 50 subs it's so nice to have seen you grow your channel ❤

It seems nice to watch a community work on a monumental task that seems impossible

Cob: two times faster than what a human can do Butterfly clicking with a broken model I: EXISTS

Hey, man!! Remember when I said that 'Mario Temple' is the easiest Hard Demon? Even if I hadn't completed it before? Well, I completed it with the 3 Coins!! I'm so happy for complete my first Hard Demon!!!

I think pamka never clear x is one of the hardest levels, or nessus.

You have to mention SUPERMASOCHAMBER which is a top 1 on the SCL (Silent Challenge List) it features Dolorem gaps and is 2p mini wave the whole way through except for the final part which used to be a fixed hitbox ship is now a black orb fixed hitbox ufo. And the dolorem gaps were replaced with 3.001 gaps and it used to have blue orbs and now has dash orbs which requires swift clicks.

have to admit the level picks in this video are rather confusing. since you went off towards the impossible levels at the end which i didnt know a single thing about, arent there more significant "impossible" levels from the older eras? like Red World or Cataclysm. also if youre going for listing impossible levels in the first place, what counts as a significant mention? there's levels like Realm of Bloodshadow and Kingdom of Miracalis that took the top spots for the hardest levels in the game at some point and they were not mentioned. i do wish you approached that a bit differently

4:22 Drag Clickers: well im out

funny thing: once I was playing around gd, and searched up "sugma", and one of the levels I died at 50%, and couldn't get past it, so I left it alone. Then the next day I checked the description of it said you had to click 7 trillion times or something

All impossible levels list(s) 1. ILL/Impossible levels list: This list has most impossible levels that are popular and below 15 cps for an single player. Current hardest: T A X E V A S I O N 2. BLL/Hardest ballistic levels list: The same as ILL but no cps cap and but no click counters. Current hardest: Unnerfed I Hate My Friends 3. PPLL/Physically possible levels list: It is the list for the hardest possible levels, almost no rules. Current hardest: PILLlife 4. TPLL/Theoretically Possible Levels List: Levels in this list are mostly only theoretically possible, but physically impossible due the gd's game engine or the universe just can't handle the insane difficulty. Current hardest: Doki buys weed 4K (new top 1 cool) 5. PILL/Physically impossible levels list: Has levels that are physically impossible, that means you cannot beat this no matter what you or if you are the beat gd player in year 9999999. Levels if this list are often very very long and has a lot of crash triggers. Current hardest: Emptiness (hardest buildable level) [POST IN COMMENTS] Ideas: (5.1): Logically impossible levels list: this this has beyond impossible levels. Non-existing lists: HLL: Merged with PPL. Link: docs.google.com/document/d/1xa8EdDRcPemx0ylYrUfb21LF937W-qOT61othC3jqzc(why you need it?) MPLL: Lost forever. All the videos of it were private and the list is gone. Link: Unknown to the public. Dead lists: Revived lists: SLL/Silent levels list (it back lol): The same as ILL but no cps cap and also no crazy click counters. Current hardest: Back on track (Will never change) Never mind It's back still keeping BLL though. Link section: ILL: docs.google.com/document/d/1TNNkuLVUE4kUv6bCnh-RuXroLky8yyL-HdWJoYNbRlI/edit or impossible-list.com/home SLL: docs.google.com/document/d/1hINX9s9FrIUsxBBCE8SKDnijq0v8krU6Qe3KoGrGBg0/edit BLL: docs.google.com/document/d/1RWzPTZ_WcArCDJzOcgO5HEzvLN5YGRci/edit PPLL: docs.google.com/document/d/1RZ524Gsou0w4djb3I13vvYV6Q9pp77UjlJkS_Et8b28/edit TPLL: docs.google.com/document/d/1GvNWez3Vh3Q6AQXLshYOmA3sXG-9JbV6Zf7ZzRpba0o/edit PILL: docs.google.com/document/d/1JnDG6PQJe5vQUZ3BWkHqObRDQqCooTZOmgHChxaudyQ/edit

4:25 Minecraft players be like “oh you can’t get 600 cps”

3:20 im pretty sure both the rotate and collide triggers weren't added until 2.1, but its been a long time since 2.0 released so I guess its understandable

where is the hardest levels list?

9:39 I laughed so hard

Idk how u make a 10 min video feel like 2 min but it’s perfect for my attention span XD

"Silent cubstep won't be verified for a while" that aged well

You can also die at 83 in cyclolcyc if you entered the speed portal at around 61 incorrectly too

always a good day when cob uploads

As a nitpick, 2.0 only added move, alpha, toggle, and spawn triggers. The reason players were limited was due to the fact that collisions, rotations, pickups, touch triggers, and other functions weren't available until 2.1, and were not widely understood until a few years later

Amazing video, as always

As someone who has gotten polargeist's 3rd coin, I can confirm that the level nessus is around normal/hard difficulty.

The standards GD has is why i never got into it, wow this video shows it

i'm 12 and my levels are just super hard challenges with spam, consistency, and extremely hard gameplay that I spend way to much time on verifying.

Let’s go dude! Nice video!

The celeste music fits a lot

also, there is an entire list above the HLL which is the theoretically possible levels list (TPLL), and the current top 1 is Pamka Never Clear X, with a counter that requires ~f_ψ(Ω_ω)(100) fps.

cob: *explaining* me watching him play the levels: damn he must be good at em

People making impossible levels by putting 10 minutes of spam gameplay and frame-perfects: Me: **3 block high wall**

oh man im waiting for silent nessus

"15-30 cps is two times faster a human can do" Drag click: *Let me introduce myself*

I’ve been waiting for this video

Guys help this guy’s videos are too interesting and I’m stuck in a Cob binge watching session

omgggg... back on track is the most level ever!!!

How to make the hardest demon: Ask a 4 year old to make it. *KIDS ARE CRUEL JACK*

The official list was originally a topic on the game forums but was ultimately moved to an independent website and has been receiving updates since April 2015. Currently, the list classifies Slaughterhouse as the hardest Demon level in the game.

nessus explanation cuz im a nerd so in gd theres a limit for your x position and once you reach that limit your x position stops updating. the limit is different for each fps but nessus is about 5 million fps and for that fps the limit is about 8.5 blocks into the level on slow speed and 17 blocks on fast speed. in the level you need to spam in the tightest possible ufo gap which is possible at 5 million fps. inside the gap there are about 300 thousand multi activate black orbs but because multi activate orbs can only be clicked once per frame you need to click all 300 thousand orbs in one frame and then jump with both players. in the level there is a tower of 1098 pickup triggers that add 1 to a counter every 4 seconds. once each counter reaches 2,147,483,647 it resets to -2,147,483,648 and must go back to 0. after the counter reaches 0 the next pickup trigger will begin counting and etc. once all 1098 counters are back at 0 the roof of the gap disappears and you can hit a speed portal that extends the x position limit, allowing you to finish the level.

In my opinion, the hardest level has to be 3SH x 2 to the power of 48 as it takes literally hundreds of thousands of years to beat

Good video however you unfortunately failed to mention “geometrical dominator dark part x20” which makes the whole thing invalid

3:50 ah the original slaughterhouse. created by icedcave and has been delayed because of his remake. it is now called grief

When you said “Back on track” i thought you were joking lol 😂

rotate triggers were added in 2.1 not 2.0 6:45 wistfully was made by madotsuki and this is just a reupload of krx. you didn't credit the creator

"a level even harder than that is" kinder egg ad: kInDeR jOy

Nice video, but i would like it if the videos would be longer. it's ok if there would be less uploads

6:18 Huh, I was around in the Discord when that Minus Club was one of the top levels in that list. And then I think Silent Clubstep was second, and Crimson World third...? Or something like that Crazy to see how much it's grown since lol

You're making amazing videos

to be honest I like older levels than newer ones. I can't see much and making a new level is a waste of time (literally it takes hours to make an unoriginal rated level). It's sad to see that most players hate map pack levels

8:12 schafs ii is a very fun and silly level, just a slap in the face to the serious ppl in the community

Omg back on track looks so hard omg no RU-vidr could beat it

Bro, an autoclicker set to 1 click per millisecond cant even beat the level at 0.5% speed 0-0

ive gotten 19 cps before

Ufokinwotm8: beats level Icedcave: you weren’t supposed to do that

This one video taught me more than my history class

Can anyone explain how a simple jumping cube avoiding spikes gone to a fricking perfect jump and nearly impossible patterns?

one of your best videos, i really enjoyed this

hey i was wondering if you play jtoh? it probably is dumb but you using music from that game made me wonder that way lol

You could also mention the TPLL. The levels there are just on another level.

first level to require a morbillion clicks

3:06 you mean because of the impossible ufo before that

Now after October 2021 the new hardest is Slaughterhouse Dethroned in December 2021 by Sakupen Circles then slaughterhouse became the hardest in March 2022

With the silent circles thing: 11-25 cps can be achieved with butterfly and you can get 50-350 cps with scroll clicking and it looks like it still hasn’t been beaten

Ah yes, 500 billion is for sure more than 33 trillion. XD 9:53

Just realized Impossible Levels List = ILL jeah those levels are ILL!

In 1.0 you can do this straight fly, add a Gravity portal and using orb. AND add pad in the middle

I Love Your Content Cob and Im Subbed

Nice

Fun fact:silent clubstep will be verified in the future

10:14 to reach that click speed, certain parts of a normal mouse would have to beat the speed of light to archive the speed

PNCX (Pamka Never Clear X) is still WAY harder than Nessus BTW, yes Cob showed footage of it but he forgot about its list: The TPLL (Theoretically Possible Levels List)

0:51 the swastika

I love your content subscribe to this man

you should make a video about the Hardest Theoretically Possible Levels List

actually verifying in practice mode was an intended feature in 1.0. got changed in 1.1 but remained useable until after 1.2

im honest but at 2:28 you talked like you didnt have theeth

I am friends with the creator of emptiness (eulernum) and even though nessus claims to be hardest level to ever be made in 2.1 believe it or not he is already making a project WAY harder than nessus Mark my words :) Edit : eulers level wont actually be way harder than nessus only just by a little bit cause illuminati explained it to me

"Its extremely versatile" Up down up down up down... and no interaction with any orbs except blue, green and the spider orb(which wasnt even in the game back then And the same with the pads. Wow so versatile

This looked so complicated to do. These levels look like they need extreme patience to complete.

Dude wth. I can't complete polargeist and those dudes are completing hardest levels ever.. I fucking suck

I love impossible levels. Even though they aren’t popular.

3:22 collision triggers weren’t introduced until 2.1

4:00 he missed a square, R.I.P life

Want a impossible level? Timeless. A level so long that it is your lifespan like times 500.

going to be honest i'm kinda tired of wave gameplay in impossible levels please just use the ufo or ball or something in a creative way i'm getting tired of seeing the wave 10 billion times

making the hardest level is honestly easy. Touch trigger, counter, make sure to handle overflow (maybe with binary?), "click 76 undecillion times to win"

But then again its all apparently completely possible since they have to run through it themselves, because an ai can’t do that for them… it scares me how impossible they’re getting and now the real question is how much more impossible can they possibly get?

I can be the first victor of Nessus, jumping from fairydust. NO JOKE NO CLICKBAIT

good content, loving it :D

Nice video! Stormfly is kinda salty in this video lol.

Note: Several other Levels are harder than Nessus like for example: PPLLLlife, Why, Transfinite Void and other from the The Theoretically Possible levels list.