Editing Slaughterhouse (section)

==History==
===Building process===
In late 2015, icedcave released the impossible hell-themed level Slaughterhouse, known for its simple decoration and intense spam, made as a sequel to icedcave's older level Challenge Club and inspired by one of [[Cyrillic|Cyrillic's]] unfinished levels, Death Angel River. [[ToshDeluxe]] notably showcased it on YouTube on 3 October 2015, where it gained popularity quickly.<ref>https://www.youtube.com/watch?v=csLA88xah4g</ref>

Frustrated by the level's popularity, given how poorly it was made, icedcave decided to remake it to redefine his legacy in the [[Geometry Dash]] community. He began in late 2018,<ref>https://www.youtube.com/watch?v=bBpwqahO3is&t=2735</ref> with the first previews of the level released in July 2019, followed by additional previews posted in May and June 2020. The previews were later made private after icedcave's audience discovered that the song—a remix of Crim3s' 'Lost' with a sample from Vince Staples' 'Fire'—came from a ''[[Wikipedia:Counter-Strike: Global Offensive|Counter-Strike: Global Offensive]]'' montage uploaded by XVA. Geometry Dash players flooded the montage creator's comments with Geometry Dash-related messages, something icedcave wanted to avoid. To further prevent this issue, icedcave and [[EndLevel]] remastered the track to disassociate it from XVA, removing extra sounds (except the end glitches) and securing XVA's permission. On 18 August 2020, the 'second-and-a-half' preview premiered on icedcave's YouTube channel, with the new version of the song and botted gameplay by [[Xanii]].<ref>https://www.youtube.com/watch?v=kP1IOohJXEY</ref> In the months after the preview's upload, community interest in the level declined, likely overshadowed by icedcave's other popular creations such as DIAMOND BLADE and Hypnosis. However, on 3 April 2021, river unexpectedly posted a video showcasing his decorated wave part, which icedcave later reposted,<ref>https://www.youtube.com/watch?v=ttI4NCRUBqM</ref> reigniting community excitement. Soon afterwards, icedcave released the final preview, showcasing CDMusic's decoration and announcing the release date of 30 April 2021.<ref>https://www.youtube.com/watch?v=VHz8MEr-UOI</ref> As planned, the level, along with a showcase video, debuted on the scheduled date, presenting fans with the eagerly awaited, true unnerfed version of Slaughterhouse.<ref>https://www.youtube.com/watch?v=7W5bZJY2IPI</ref> The video remains icedcave's most-watched upload.

===Verification===
Upon release, despite no one initially intending to verify it, top players made impressive runs on the level, notably Kurumi, who achieved runs of 0-20%, 30-50%, 58-74%, and 82-100%.<ref>https://www.youtube.com/watch?v=zWzTYw8P_Rc</ref> Yet, it proved too difficult for verification, with some comparing it to unnerfed [[Silent clubstep]]. To make it more playable, icedcave released an update a week later, nerfing river's wave and reworking a wave segment at 79%. However, it remained incredibly challenging. Shortly after, he adjusted the difficulty to a Top 5 Extreme Demon, similar in difficulty to [[Zodiac]] at the time. After completing the adjustments, he began searching for a verifier.

After doing impressive runs on the unnerfed version a month earlier,<ref>https://x.com/_Xanii_/status/1389754582365048835</ref> Xanii was initially chosen as the verifier.<ref>https://x.com/_Xanii_/status/1400483165832105986</ref> However, he quickly dropped it due to the level being disconnected from his skillset. icedcave then turned to Twitter to seek another verifier, noticing a hesitant reply from Doggie,<ref>https://x.com/DasherDoggie/status/1404129769290178563</ref> who was ultimately chosen to verify the level while taking a break from his Extreme Demon Alphabet series. Even before he began streaming the level, he quickly made progress, achieving runs of 49-60%<ref>https://x.com/DasherDoggie/status/1404155153305976836</ref> and then 49-86%.<ref>https://x.com/DasherDoggie/status/1405731316340084736</ref> Once he began streaming the level, he reached 51% within just three streams.<ref>https://www.twitch.tv/videos/1099280654</ref><ref>https://www.youtube.com/watch?v=5UIGHVprw14</ref> However, tensions arose after icedcave and another player named Lexy quarrelled,<ref>https://web.archive.org/web/20210803075041/https://twitlonger.com/show/n_1srpav6</ref> causing icedcave to leave the game. With the level dormant due to a lack of a host, Doggie focused on completing his Extreme Demon Alphabet series.<ref>https://www.youtube.com/watch?v=Jpwtv8mOlCs&t=5483</ref> icedcave eventually returned and revived the level, but Doggie was still focused on completing his series. With Doggie out of the picture, [[Cursed]] was appointed to verify it, putting his work on the [[Sakupen Circles (Diamond)|Sakupen Circles]] verification on hold. Doggie also offered to be a backup verifier if necessary.<ref>https://x.com/DasherDoggie/status/1441535412342861824</ref> However, once Cursed took over, all verification progress updates became radio silent.

Due to this inactivity, icedcave decided to reignite the verification process by turning it into a race, but as a new, harder Top 1 version, more similar to the unnerfed version of the level. On 15 October 2021, icedcave announced this race,<ref>https://www.youtube.com/watch?v=JVShHvtFZmU</ref> which featured participants like spaceuk, Xanii, [[Trick]], Photonic, and Zamasu. spaceuk appeared to be in the lead for much of the race, until he supposedly verified the level on 24 October 2021. To ensure the level would receive its rating, icedcave changed its song twice, settling on 'Fly Away' by Tennobyte on 29 October 2021. The level received its rating on the same day, along with two other supposed Top 1 levels: [[arcturus]], which had been verified months earlier, and [[Firework]], which was verified on the same night. On 3 November 2021, Slaughterhouse claimed the #1 spot on the Demonlist, overtaking Firework, surprising many due to Firework's perceived difficulty.

To the community's surprise, on 25 April 2023, spaceuk was exposed for, and later confessed to, hacking all of his achievements, including his Slaughterhouse verification. Doggie, who was the first victor of the level after beating it on 19 December 2021,<ref name=":0" /> was crowned as the legitimate verifier.