Mortal Shell II Achievement Guide

Track Mortal Shell II achievements, beta-only objectives, missable exploration tasks, Shell and weapon unlocks, and the safest route toward 100% completion.

Beta evidence

Checked Aug 19, 2026Independent community record

Quick answer

The Open Beta lists nine achievements. Keep beta achievements separate from the full release list, and watch Beacon, hidden-area, Tar Golem, and collection objectives for easy-to-miss progress.

Beta and full-game tracking

The safest checklist starts by separating build-specific objectives.

Open Beta contains nine listed achievements.
Do not assume beta achievement progress transfers to the formal release list.
Record the build and date beside every achievement checklist.

Missable-looking objectives

Exploration achievements are the most likely to be delayed by a rushed route.

Search Beacons and hidden areas before leaving each region.
Check Tar Golem and collection-related objectives against your route.
Revisit Shell, weapon, and trial locations before the final boss push.

100% route planning

A low-spoiler route keeps completion work manageable.

Finish automatic story objectives first, then clean up Shell and weapon tasks.
Use a save checkpoint before optional boss attempts when the release rules are confirmed.
Beta community estimates of about four hours are not a formal-game completion promise.

Evidence is time-stamped to Aug 19, 2026. Beta feedback is labeled as beta evidence and is not a permanent formal-release rule.