3C3C1D119440927 is the first and only downloadable content for NieR: Automata. It includes arena style gameplay with cosmetic item rewards, as well as a small story detailing the events of a machine lifeform known as Plato 1728. In the Become as Gods (Xbox One) and Game of the YoRHa (PS4 and Steam) editions it is included.
The strange title was explained by Square Enix as indicating "3 Costumes, 3 Coliseums, 1 Dream," followed by a date in plain numerals (September 27th, 11944) which is the same date shown in the included music video, and six months before the events of the main game.
"Also included is the amazarashi head pod skin accessory allowing you to alter the appearance of your pod to look like an amazarashi head."
"*To enjoy this content you will need to have progressed a certain way into the main story of the game. There are also some scenes during the progression of the main game scenario in which this content cannot be accessed."
The DLC includes three arenas, the Underground Colosseum, Gambler's Colosseum and Trial of Sand, located at three previously inaccessible elevators. They can be accessed after receiving the quest Mysterious Letter. Each location has its own quest with challenges, and some are only accessible with certain characters.
After completing the three arenas, there is a final quest, Mysterious Invitation, which tasks the player with going to the Amusement Park and investigating a newly opened elevator. Once inside, a TV is available to interact with and doing so will allow the player to relive the memories of machine lifeform Plato 1728. At the end of this story, a music video by rock band Amazarashi is played as the ending credits. After the video, the player can exit the Amusement Park and will now have access to special challenge tiers in each of the arenas. Finally, a unique boss fight with Square Enix president Yosuke Matsuda and Platinum Games former head Kenichi Sato can be accessed by persistently asking the Resistance Secretary inside the Gambler's Colosseum arena for a fight with "you-know-who".
- The first part of the title, if read as hexadecimal code, indicates a type of ASCII group separator control code used to separate data tables in very old database systems stored on serial storage (1D) for a group of "<<" (rewind symbol).
- The obtainable costumes are that of characters from NieR Replicant ver.1.22474487139....
- The bosses fought during the special challenge in the Gambler's Colosseum resemble Gestalts from NieR.