History of Lost Sector Mastery

Revision 25527 by archivist at 2026-10-10 09:28:30

Overview

Lost Sector Mastery is a Triumph that requires completing any Europa Lost Sector on Master difficulty. Completing this triumph awards 10 score.

How to complete

Europa has three Lost Sectors. Complete any one of them on Master:

Perdition, Cadmus Ridge, central cliff. Boss: Alkestis, Sacrificial Mind (Vex).
Bunker E15, Eventide Ruins, yellow building. Boss: Inquisitor Hydra (Vex).
Concealed Void, Asterion Abyss. Boss: Teliks, House Salvation (Fallen).

Master difficulty unlocks after you finish the normal version of that sector and reach 1940 Power. The recommended power for Master is 2050.

Bunker E15 and Concealed Void rank as strong choices, and Perdition as average. A 2020 forum thread reported that Master completions in the Cosmodrome did not count toward this triumph.