Xbox to Launch Retroactive 'Mythic' Achievements, Mimicking PlayStation's Platinum Trophies

Key points

• Mythic achievements are awarded for completing all base-game achievements, excluding DLC and title updates.
• The feature is retroactive, applying to all previously completed games with 100% base-list completion.
• Mythic achievements have zero Gamerscore value but include a new 16-second unlock sound and animation.
• Profiles will display a total Mythic count, and completed games will feature a green star, laurel, and border in the Gaming tab.
• The rollout is expected before the end of September 2026, potentially starting with Xbox Insiders.

Background

Xbox has been updating its ecosystem recently, including testing new Insider features like retro boot animations and improved Remote Play. Earlier in September, a bug introduced invisible zero-Gamerscore phantom achievements that disrupted 100% completion counts, highlighting the need for clearer completion metrics. This new Mythic system aims to provide a definitive completion marker similar to PlayStation's long-standing Platinum trophy.

How outlets are covering it

TrueAchievements provides a detailed breakdown of the Mythic achievement's mechanics, emphasizing its retroactive nature and the overhaul of the Gaming tab profile header. They note that the feature will likely roll out to Insiders first. Insider Gaming focuses on the technical discovery of the unlock sound and symbol within the Xbox PC app, highlighting the 16-second audio duration. While TrueAchievements confirms the retroactive application, Insider Gaming notes that it is not yet clear if developers must update games or if the system applies automatically, though TrueAchievements' source suggests a system-wide retroactive update. Both sources agree on the September 2026 timeline and the exclusion of DLC from the Mythic calculation.

Why it matters

The introduction of Mythic achievements provides Xbox players with a clear, platform-wide completion metric that rivals PlayStation's Platinum trophies. This change enhances profile visibility and completionist tracking, potentially influencing player behavior and game completion rates. The retroactive nature ensures existing players benefit immediately, while the new visual and audio cues create a more rewarding experience for achieving 100% base-game completion.

What to watch

Xbox is expected to roll out Mythic achievements to Insiders before the end of September 2026. Following the Insider phase, the feature will likely expand to all Xbox users. Players can expect their profiles to update automatically with Mythic badges for any games where they have already achieved 100% base-list completion. Microsoft may also provide further details on how the system handles edge cases, such as the recent phantom achievement bug.