Full list of all 52 OUTRIDERS achievements. It takes around 60-80 hours to unlock all of the achievements in the base game on Windows.
The base game contains 43 achievements, and there are 2 DLC packs containing 9 achievements.
Complete all New Horizon Expeditions.
Dispose of the Acari in Molten Depths while playing in a duo.
Interfere with an experiment in The Marshal's Complex.
Grant a stay of execution.
Learn Salvador's strange discovery.
Secure the valley's future.
Return to Tarya Gratar and face the first Arbiter.
Embrace the Madness.
Defeat final Arbiter on Apocalypse Tier 25.