Casualties: Unknown Guide

The Marksman achievement

Last updated Unofficial fan guide

Spoiler warning: this is a hidden achievement tied to late-game content.

Steam description
Finish a run as a Milky.
Players who have it
4.7%

How to unlock The Marksman

Reach any ending as Milky. This also unlocks Dune.

It's number 29 of 40 by how many players have it (Steam global stats, November 15, 2026).

Related pages

Sources: Casualties: Unknown Wiki (Miraheze) · Steam Community

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