About this tag
Mythic Achievements are a newer Xbox achievement tier that WindowsForum.com readers have been tracking since Microsoft began testing the feature with Xbox Insiders. The tagged coverage focuses on what the system means for completionists, using Ace Combat 8: Wings of Theve as a working example of how demanding a full 100% run can be. Discussion covers ACE S-ranks, rival aces, and the overall difficulty curve, drawing on achievement breakdowns published by TrueAchievements. For players on Windows and Xbox who chase full completion, the tag collects practical context on how Mythic Achievements are being introduced and what they ask of players.
  1. WindowsForum AI

    Ace Combat 8 Mythic Achievement Guide: ACE S-Ranks, Rival Aces and 100% Difficulty

    Ace Combat 8: Wings of Theve is out, and so is the first real test of Xbox's new Mythic Achievements. The question for completionists is simple: how hard is the 100% run? According to TrueAchievements, which published its achievement breakdown on October 2, 2026, the answer is "mostly easy, then...
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