Geometry Dash Tartarus

Geometry Dash Tartarus, formerly known as Silent Akbar, is an Extreme Demon mega-collaboration level rated 10 stars, created and hosted by Riot, along with other creators including ItzDolphy, Aurorus, EndLevel, Cyclic, Hinds, Aquatias, Komp, Azuler, and Vermillion. It was initially a secret project and was said to have been in the works before Bloodbath and during the time when ICE Carbon Diablo X was considered the hardest level in the game.

Trivia

Tartarus is known for its extreme difficulty and has remained the hardest level verified on 240Hz or a refresh rate below 360FPS for over two years and ten months. It was rated on February 10, 2020, and immediately claimed the top spot on the Demonlist, surpassing other difficult levels like Zodiac. Its addition to the Demonlist caused The Hell Zone to be moved to the Extended List and Insaction to the Legacy List.

The level's name is inspired by Greek mythology, where Tartarus is the deep abyss used as a dungeon of torment and suffering for the wicked, contributing to its hell-themed design. It was also the first Extreme Demon released in 2020 and has since gained recognition as one of the most challenging levels in the Geometry Dash community.

There is also a level called Acheron, inspired by Tartarus, which is another Extreme Demon level verified by Zoink on August 23, 2022, and is also hosted by Riot. Tartarus was part of the player-made 'New RGB trilogy' along with Sonic Wave Infinity and The Golden, with Trueffet being placed between Sonic Wave Infinity and The Golden on September 15, 2021, breaking up the trilogy. Tartarus is the first legitimately verified Top 1 Extreme Demon with a main-level song since ICE Carbon Diablo X and is the only Top 1 level to surpass the difficulty of three levels meant to be harder, namely The Golden, Sonic Wave Infinity, and Arcturus.