MONOMOON Achievements
The first-party Steam achievement page showed 15 total achievements on 12 November 2026. Most details were hidden in the account view used for this check. This Australian English edition uses the same first-party evidence checked on 12 November 2026. Store details may differ by region.
What Steam currently shows
The visible achievement is “Moon,” described as “Restore the Moon.” Steam marked the other 14 as hidden and said their details would be revealed after unlocking. These numbers and visibility rules are a dated snapshot, not a permanent completion guide. Total achievements: 15. Visible without unlocking in this account: 1. Hidden in this account: 14.
Playing for discoveries
Gentle Giant describes layers of secrets and says the experience continues beyond the credits. If you prefer to avoid spoilers, complete your own exploration first and consult an achievement list only when you decide to pursue the remaining discoveries. This is a spoiler-management suggestion, not an unlock route.
Quick answers
How many MONOMOON achievements are there?+
Steam showed 15 on 12 November 2026. Check the live Steam page for changes.
Are all achievement requirements public?+
Not in the first-party account view used here: 14 were hidden. We do not claim verified unlock steps for them.
MONOMOON: S01, S03 · 2026-11-12.
View source ledger →