Discover the Enigma: Unravel the Secrets of NieR: Automata's Hidden Letter

Author: Julian Jan 27,2025

NieR: Automata's 3C3C1D119440927 DLC unlocks three challenging Colosseums after receiving a mysterious letter. This guide details their locations and Rank S rewards.

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The 3C3C1D119440927 DLC, available across all editions, introduces optional content and cosmetic rewards. After progressing slightly, a mysterious letter with coordinates will appear. These coordinates lead to three Colosseums, each with six progressively difficult ranks.

Trial of the Sand Colosseum Location

Located in the desert, this Colosseum is accessible from the Desert: Center access point. Zoom out and look right (from your entry point) for an orange diamond marking its location. A machine guards the entrance, but poses no significant obstacle. Completing the quest offers various rewards.

  • Rank S Reward: Destroyer Outfit (A2)

Gambler's Colosseum Location

Starting from the Flooded City: Coast access point, follow the path to the coast (the same route used to guard the resource ship). At the end, locate a waterfall to the right. Circle around the building to the left, finding a Resistance member guarding the entrance. A 1,000G bribe unlocks access to the Gambler's Colosseum quest.

  • Rank S Reward: Revealing Outfit (2B)

Underground Colosseum Location

9S ONLY: This Colosseum is exclusively accessible while playing as 9S.

Starting at the Forest Zone: Center access point, follow the forest's left edge until you find machines training near a large waterfall. Pass through the waterfall to access the Underground Colosseum quest.

  • Rank S Reward: Young Man's Outfit (9S)