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NieR: Automata - Mysterious Letter Guide

Author:Kristen Update:Mar 05,2025

NieR: Automata - Mysterious Letter Guide

NieR: Automata's 3C3C1D119440927 DLC unlocks three challenging Colosseums. After receiving the Mysterious Letter, use these guides to locate them:

Quick Links

The DLC adds optional content and cosmetic rewards. Each Colosseum features six ranks with progressively difficult enemies.

Trial of the Sand Colosseum Location

Located in the desert. From the "Desert: Center" access point, look right (facing the desert entrance) for an orange diamond-shaped marker. A machine guards the entrance, but it's non-hostile. Completing Rank S rewards the Destroyer Outfit (A2).

Gambler's Colosseum Location

Accessible from the "Flooded City: Coast" access point. Follow the path to the coast (the same path used to guard the resource ship). At the end, find a waterfall and circle around the building to the left. A Resistance member guards the door; bribe them with 1,000 G to enter. Completing Rank S rewards the Revealing Outfit (2B).

Underground Colosseum Location

9S ONLY. Start at the "Forest Zone: Center" access point. Follow the left edge of the forest to a group of training machines near a large waterfall. Pass through the waterfall to access the Colosseum. Completing Rank S rewards the Young Man's Outfit (9S).