Xbox 100% Completion Achievement System

Xbox Mythic Achievement Wiki

The brand-new completion marker for achievement hunters, expected to unlock at 100% base-game achievement completion. We cover Mythic rules, base vs. DLC achievements, retroactive unlocks, badge details, news, and complete hunting guides.

Xbox Mythic Achievement Resources

Eight quick-launch sections covering Mythic news, rules, requirements, the game database, difficulty tiers, and beginner workflows.

Latest Updates

Discover the newest guides, tips, and content

Xbox Mythic Achievement: LASO Setup Guide & Tips

Learn how to prepare for the Xbox Mythic Achievement with LASO rules, skull effects, mission planning, survival tips, and progress checks.

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Xbox Mythic Achievement: Halo 3 Guide & Tracker

Learn how Xbox Mythic Achievement tracking relates to Halo 3, Mythic Map Pack goals, completion checks, and efficient achievement planning.

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Xbox Mythic Achievement earn: Step-by-Step Guide

Learn how to earn the Xbox Mythic Achievement, track base completion, handle DLC, and verify your final completion status.

Sep 24, 2026guide
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Xbox Mythic Achievement Halo 2: LASO Setup Guide

Prepare for the Xbox Mythic Achievement Halo 2 challenge with a practical LASO setup guide covering skulls, campaign planning, checkpoints, and co-op roles.

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Xbox Mythic Achievement: Setup Guide and Unlock Tips

Learn how Xbox Mythic Achievement tracking may work, how to prepare your game library, and what to check before the feature rolls out.

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Xbox Mythic Achievement: 2026 Feature Guide & FAQ

Learn how the reported Xbox Mythic Achievement system may work, including base-game completion, retroactive rewards, tracking, and profile features.

Sep 24, 2026news
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Xbox Mythic Achievement: Platinum Trophy Comparison

Learn what the Xbox Mythic Achievement may represent, how it compares with PlayStation Platinum trophies, and what remains unconfirmed.

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Xbox Mythic Achievement completion percentage: Guide

Learn how Xbox Mythic Achievement completion percentage may work, how to read progress, and how to prepare for full Gamerscore goals.

Sep 24, 2026list
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Xbox Mythic Achievement: Platinum Trophy Equivalent Guide

Learn what the Xbox Mythic Achievement may represent, how the preview filter works, and what remains unconfirmed as of September 2026.

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Xbox Mythic Achievement Xbox platinum trophy: Status Guide

Track the Xbox Mythic Achievement rumor, understand its possible platinum-style role, and verify official status without relying on speculation.

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Xbox Mythic Achievement new: 2026 Feature Breakdown

Learn how Xbox Mythic Achievements are expected to work, including base-game completion, DLC rules, profile tracking, and rollout details.

Sep 24, 2026news
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Xbox Mythic Achievement available games: 2026 Guide

Learn which Xbox games may support Mythic Achievements, how the feature is expected to work, and what players should check before chasing completion.

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Achievement Overview

Xbox Mythic Achievement Guide

What Is an Xbox Mythic Achievement?

The Mythic Achievement is a higher-level completion marker for Xbox players. It appears after a player completes a game's base achievement list and reaches full completion of the base game. The feature is especially relevant to completionists because it gives a single, recognizable reward for finishing the core achievement experience rather than displaying only a collection of individual achievements.

Core concept

A completion marker above individual achievements

A Mythic Achievement represents completion of a game's qualifying base achievement set. Instead of rewarding one objective, it summarizes a broader completion milestone for the title.

Xbox achievement feature
PlayStation comparison

Comparable to a Platinum Trophy

Like a PlayStation Platinum Trophy, the Mythic Achievement gives players a distinct reward for completing the main achievement requirements of a game. Xbox uses its existing achievement framework plus a separate Mythic marker.

Feature comparison
Why it matters

A clearer goal for Xbox completionists

The feature gives completion-focused players a visible end point for a game's base content. It makes achievement hunting easier to track by separating ordinary progress from full base-game completion.

Completionist benefit
Presentation

A dedicated completion identity

Mythic Achievement is a distinct achievement-level reward rather than an increase to a player's Gamerscore. Its value is recognition, collection, and completion status.

Feature behavior
Completion Checklist

Xbox Mythic Achievement Requirements

How to Earn a Mythic Achievement

Earning a Mythic Achievement takes more than unlocking a single difficult achievement. The completion path starts with the title's qualifying base achievement set, continues through the game's full base-content requirements, and ends when Xbox recognizes the completed base-game state.

1

Unlock every achievement included in the qualifying base achievement list for the game. This is the fundamental requirement of the Mythic path.

  • Unlock all achievements in the game's base list
  • Include story, gameplay, collectible, difficulty, and other base-game achievements where applicable
  • Confirm that no qualifying base-list achievement remains locked
2

The system evaluates the game's BaseGame completion state rather than simply counting achievements from every content set attached to the title.

  • Finish the game's core achievement objectives
  • Reach the completion state associated with the base game
  • Allow the Xbox achievement system to update the title's completion record
3

Trigger the Mythic recognition

How it works

After the qualifying base-game conditions are met, Xbox generates and displays the Mythic Achievement as a separate completion marker.

  • Synchronize achievement progress while connected to Xbox services
  • Recheck the game's achievement page after the final requirement unlocks
  • Look for the Mythic marker in the game's achievement or completion presentation
4

Check title-specific edge cases

Varies by title

The general completion path applies to every title, while detailed handling for expansions, title updates, bundled releases, and unusual achievement structures varies by game.

  • Review whether the title separates base achievements from additional content
  • Check whether updates have changed the qualifying base list
  • Treat unusual editions and bundled releases as title-specific cases
Release Timeline

Xbox Mythic Achievement Release Status

From Xbox achievement updates to the September 2026 PC App discovery

The Mythic Achievement rollout has been described through a sequence of Xbox Insider updates and app discoveries. This timeline separates the early Xbox feature communication from the later Xbox PC App appearance and identifies the current state of the rollout.

April 8, 2026Xbox Insider updateInsider-facing

Xbox achievement updates establish the context

Xbox announced achievement-related console features for Insiders, creating the broader update context in which the Mythic Achievement concept was later discussed.

August 5, 2026Xbox Insider updateInsider-facing

Further Insider feature scheduling

A later Xbox Insider update continued the achievement-feature rollout discussion and provided the next stage of the expected feature schedule.

September 22-23, 2026App discoveryVisible in the PC App discovery

Mythic Achievement discovered in the Xbox PC App

The Xbox PC App discovery exposed the Mythic Achievement concept and its relationship with base-game completion, giving players the clearest public glimpse of how the feature operates.

NowRollout in progressInsider and app-discovery stage

Feature details are being surfaced through the rollout

Mythic Achievement is an Xbox achievement-system feature tied to full base-game completion. Broader availability, final presentation, and all title-specific rules follow the Xbox feature rollout.

Eligibility Rules

Xbox Mythic Achievement Base Game vs DLC

How the core title, expansions, and bonus achievement sets factor into Mythic eligibility

For completionists, the most important distinction is whether every achievement attached to a game must be completed or whether the Mythic Achievement is based on the title's base-game set. The BaseGame behavior points to the latter: the core game is the primary eligibility unit, while expansions and bonus sets require separate handling.

Base-game achievements

Core requirement

Primary eligibility requirement

The game's qualifying base achievement list must be completed as part of the Mythic path.

DLC and expansions

Standard behavior

Separated from the base-game requirement

The BaseGame logic treats additional expansion achievement sets as separate from the core base-game completion set.

Title updates

Title-specific

Depends on how the update is classified

An update that adds achievements is handled according to its relationship with the base game and the way Xbox categorizes the associated achievement set.

Bonus achievement sets

General framework

Separate treatment expected

Bonus, event, or supplemental achievement sets are evaluated separately from the game's qualifying BaseGame list unless Xbox assigns them to the base completion record.

Complete-edition and bundled releases

Edge case

Edition-dependent

A bundled release may contain multiple achievement sets, but the Mythic calculation follows the title's base-game classification rather than the retail bundle name.

Removed, changed, or unobtainable achievements

Edge case

Requires system handling

The treatment of delisted, altered, or unobtainable achievements follows a title-level or platform-level rule defined by the BaseGame logic.

Completion History

Xbox Mythic Achievement Retroactive Unlocks

How previously completed games can receive the Mythic award

When Mythic Achievement groups become active, Xbox compares a player's existing achievement history with the qualifying base-game completion requirements. A game completed at 100% before activation can receive its Mythic award without another playthrough, and the award may appear after the profile or achievement data refreshes.

Step 1

Confirm the game reached 100%

Open the game's achievement page and verify that every base-game achievement is unlocked. Check the unlocked total, Gamerscore, and completion percentage before treating the game as a completed Mythic candidate.

  • Base-game achievements show 100% completion
  • The final base-game achievement is unlocked on the same Xbox profile
  • DLC achievements are reviewed separately and are not counted as part of the base-game completion check
Step 2

Check the Xbox profile

Open the Xbox profile, select Gaming, and review the completed-games or achievement-history views. Open the finished game and look for a Mythic badge, a new completion marker, or an updated award total.

  • Open the game from the profile's achievement history
  • Review the completion percentage and unlocked achievement total
  • Refresh the profile after Xbox activates the group data
Step 3

Refresh the console interface

On Xbox console, open the game's achievement list from the Guide or the player profile. Navigate away from the list and open it again to force the latest achievement and completion-group status to load.

  • Open the Guide and select Achievements
  • Choose the completed game from the recent or full-game list
  • Restart the console or sign out and back in if the updated Mythic status does not appear immediately
Step 4

Verify through the Xbox PC App

Use the Xbox PC App to review the same achievement history from a desktop or laptop. Select the profile, open Gaming or achievements, and inspect the completed game for the Mythic award or updated group status.

  • Sign in with the Xbox account that completed the game
  • Open the game's achievement detail page
  • Compare the Xbox PC App result with the console and profile views after synchronization
Game Database

Xbox Mythic Achievement Games

Base-game completion requirements, Gamerscore totals, and DLC separation in one update-friendly list

This catalog separates the base game from additional content so players can identify which achievements contribute to a Mythic completion. Use the details below to find short single-player games, online-dependent games, or titles with separate DLC achievement sets.

Halo Infinite

Xbox OneXbox Series X|SPC

50

Base achievements

1000

Base Gamerscore

All 50 base-game achievements

Mythic completion target

DLC separation: Additional multiplayer and campaign-related achievement content is listed separately from the original base set

Online requirements: Online connection required for multiplayer achievements and several live-service activities

Mythic eligibility: Eligible when the base-game achievement group is active and complete

First-person shooterCampaignOnline multiplayerDLC separated

Forza Horizon 5

Xbox OneXbox Series X|SPC

53

Base achievements

1000

Base Gamerscore

All 53 base-game achievements

Mythic completion target

DLC separation: Hot Wheels, Rally Adventure, and other expansion achievements are tracked separately from the base game

Online requirements: Online connection is required for multiplayer events, shared-world activities, and selected seasonal content

Mythic eligibility: Eligible when the base-game achievement group is active and complete

Open-world racingCollectiblesSeasonal activitiesExpansion separated

Ori and the Blind Forest: Definitive Edition

Xbox OneXbox Series X|SPC

57

Base achievements

1250

Base Gamerscore

All 57 achievements in the Definitive Edition set

Mythic completion target

DLC separation: The Definitive Edition content is included in the listed game set rather than being tracked as a separate expansion

Online requirements: No online multiplayer requirement

Mythic eligibility: Eligible when the complete achievement set is active and fully unlocked

MetroidvaniaSingle-playerCollectiblesNo online requirement
Difficulty Ranking

Xbox Mythic Achievement Difficulty Tier List

Games ranked by time commitment, missables, online tasks, difficulty settings, and collectible cleanup

The tier system measures the effort required to complete the base achievement group rather than judging a game's overall quality. S-tier games demand the most planning or repeated cleanup, while C-tier games are generally approachable for a first Mythic attempt.

S

Most demanding

Forza Horizon 5

Completion time

80-120 hours for the base achievement set

Missables

Low

Online / co-op

Moderate to high

Difficulty settings

Low impact

Collectible cleanup

High

Server availability

Requires active online features for multiplayer and seasonal activities

Large open-world progression, extensive activity coverage, online events, and cleanup across multiple event types make the base completion lengthy.

A

Advanced

Halo Infinite

Completion time

40-70 hours for the base achievement set

Missables

Low to moderate

Online / co-op

High

Difficulty settings

Moderate impact

Collectible cleanup

Moderate

Server availability

Online multiplayer and live-service activities are required for part of the list

Campaign progress is manageable, but multiplayer achievements and activity-specific requirements add scheduling and skill demands.

B

Moderate

Ori and the Blind Forest: Definitive Edition

Completion time

20-30 hours for a complete achievement run

Missables

Moderate

Online / co-op

None

Difficulty settings

High impact for challenge-oriented achievements

Collectible cleanup

Moderate to high

Server availability

Not applicable

Fully single-player, but challenge runs, exploration precision, and collectible routing can require a second playthrough or careful save management.

C

Beginner-friendly

Ori and the Blind Forest: Definitive Edition

Completion time

15-20 hours for a guided story-focused run

Missables

Low with a route guide

Online / co-op

None

Difficulty settings

Selectable challenge level affects completion planning

Collectible cleanup

Limited after map exploration

Server availability

Not applicable

A focused route and manual tracking make the core achievement path accessible to new achievement hunters.

Getting Started

Xbox Mythic Achievement Beginner Guide

Your first Mythic run, from game selection to verification

A successful first run starts with choosing a manageable game, identifying requirements before playing, and tracking progress as you go. Xbox profile tools and the Xbox PC App make it easy to review unlocked achievements, compare progress, and confirm that the entire base set is complete.

Start with a single-player game that has no server dependency and a clear base-game list. A shorter campaign with limited online requirements is easier to plan than a live-service or multiplayer-heavy title.

  • Review the estimated completion time
  • Check whether online or co-op achievements are required
  • Confirm that DLC achievements are separated from the base-game target

Before launching the game, scan every achievement and group them into story, combat, collectibles, difficulty, exploration, and cleanup categories. Mark anything that can be missed during a normal playthrough.

  • Identify missable achievements
  • Note difficulty-specific requirements
  • Record collectible groups and chapter locations
  • Separate base-game achievements from DLC
3
Step 3

Plan online and co-op tasks

Complete multiplayer or co-op requirements early when possible. Confirm that the required modes, events, or matchmaking activities are available before investing time in the rest of the list.

  • List every online achievement
  • Arrange a co-op partner when required
  • Complete time-limited or seasonal activities first
  • Track server-dependent progress separately

Use the Xbox profile achievement view or the Xbox PC App to monitor unlocked achievements after each session. Keep a separate note for collectibles, optional objectives, and achievements that require a return trip.

  • Review achievement progress after major story sections
  • Record missed collectibles immediately
  • Use the Xbox PC App for a larger achievement list view
  • Avoid assuming that story completion equals full completion
5
Step 5

Complete cleanup and DLC separation

After the story ends, revisit unfinished areas and complete the remaining base-game achievements. Keep expansion content in a separate checklist so it does not obscure the Mythic base-game target.

  • Filter for locked base-game achievements
  • Finish collectible and exploration cleanup
  • Complete remaining difficulty or challenge requirements
  • Review DLC as an optional follow-up goal

Confirm that every base-game achievement is unlocked and that the Xbox profile shows 100% completion. Refresh the console and Xbox PC App views, then check for the Mythic award or completion-group marker.

  • Confirm the base-game achievement count is complete
  • Verify the final Gamerscore total
  • Refresh the Xbox profile and achievement page
  • Check the Xbox PC App for the updated Mythic status