Xbox Mythic Achievement appears in Xbox PC App update

• The feature is being seen as a possible counterpart to PlayStation’s Platinum Trophy, meant for players who complete all achievements in a game.
• Xbox has not officially announced or confirmed the Mythic Achievement.

What happened

Game Rant wrote on September 23 that a supposed Xbox feature called the Mythic Achievement may have become visible in a new update to the Xbox PC App. The report mentions official artwork and an unlock sound, but Xbox itself has not publicly confirmed any of it. As presented, it remains an unverified discovery that the company has not explained.

According to the reporting, the claim was shared by Xbox-focused creator Klobrille, who posted a short video on X/Twitter on September 23. In the 16-second clip, the Mythic Achievement logo and its associated sound were reportedly shown and heard. The report links the feature to a possible Xbox answer to PlayStation’s Platinum Trophy. In the available context, the discovery is said to have come through a new Xbox PC App update, but there is no statement from Xbox confirming that.

The comparison with PlayStation is straightforward: the Platinum Trophy arrived in July 2008 through a PS3 firmware update and is awarded when players earn all other trophies in a game. For now, the Mythic Achievement remains a rumor and a possible find in the Xbox PC App update. The available sources describe it as a reward for 100% Gamerscore or for completing all achievements in a game, but that detail has not been officially confirmed by Xbox either.

Background

The Mythic Achievement is described in the reporting as a reward for 100% Gamerscore or for completing all achievements in a game. That would make it conceptually similar to PlayStation’s Platinum Trophy, but the available sources do not include an official confirmation from Xbox. The core of the story is therefore not an announced release, but a mix of a social media post, a supposed app update, and the interpretation of new or hidden assets.

The available context shows that the claim mainly centers on what may have appeared in the Xbox PC App update. According to the report, it involves a symbol and an unlock sound, and the summary of the source says Klobrille shared this on September 23. The external context also notes that the discovery spread via X/Twitter and that the video was 16 seconds long. That makes the report specific in date and form, but not officially confirmed in substance.

The PlayStation comparison is also a journalistic reference point rather than an official Xbox position. The Platinum Trophy is used in the context because it has existed since July 2008 and rewards players who earn all other trophies in a game. The Mythic Achievement is described in the same way in the reporting, but its status remains that of a rumor. The open question is not only how the feature would work, but whether the assets in the app update actually signal a final feature or just an early or hidden reference.

The available information does not include a date for an official announcement, a release window, or confirmation from Xbox that the Mythic Achievement name is final. As a result, the reporting is limited to what Game Rant and Klobrille shared on September 23. Until Xbox says otherwise, it remains unclear whether the update contains a real addition or a leak that still needs explanation.

Sources

• Game Rant: "Xbox's Rumored Mythic Achievement Just Got a Symbol and Unlock Sound"
• X/Twitter post by Klobrille about the Xbox PC App update and the Mythic Achievement