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Halo: The Master Chief Collection Achievements

Official Steam achievement definitions and latest reported global unlock rates, ordered from rarest to most common.

Total achievements700

Rarest rate0.500%

Ultra rare56

Last checkedSep 28, 2026

Delayed official data

Rates and award counts were last observed on Sep 28, 2026.

461

Arrival

Halo CE: Activate Terminal 1 on The Pillar of Autumn.

Rare

7.20%last reported global rate

462

Skulltaker Halo: CE: Foreign

Halo CE: Find and claim the Foreign skull in remastered mode.

Rare

7.20%last reported global rate

463

Skulltaker Halo: CE: Mythic

Halo CE: Find and claim the Mythic skull in remastered mode.

Rare

7.20%last reported global rate

464

Going International

Halo 4: Complete a match on at least 8 different multiplayer maps.

Rare

7.30%last reported global rate

465

Askar

Halo 3: Beat the par score on The Storm.

Rare

7.50%last reported global rate

466

First In, Last Out

H3: ODST: Complete every level of the game on Heroic difficulty.

Rare

7.50%last reported global rate

467

King of the Crows

Halo 3: Beat the par score on Crow's Nest.

Rare

7.50%last reported global rate

468

Knowledgable

Halo 2: Activate Terminal 10 on Gravemind.

Rare

7.50%last reported global rate

469

Memories

Halo CE: Activate Terminal 8 on Two Betrayals.

Rare

7.50%last reported global rate

470

Skulltaker Halo 3: Black Eye

Halo 3: Find and claim the Black Eye Skull on Normal or harder.

Rare

7.50%last reported global rate

471

Counter-Sniped

Halo 2A MP: With a Sniper Rifle or Beam Rifle kill an enemy that was zoomed in.

Rare

7.60%last reported global rate

472

Hitchhikers May Be Escaping Convicts

Halo CE: Activate Terminal 5 on Assault on the Control Room.

Rare

7.60%last reported global rate

473

Objective Secured

Halo 2: Beat the par score on Outskirts.

Rare

7.60%last reported global rate

474

Game Breaker

Halo: Reach: Kill 10 enemies while using a Jetpack.

Rare

7.70%last reported global rate

475

Mind Games

Halo CE: Activate Terminal 9 on Keyes.

Rare

7.70%last reported global rate

476

One Way Ride

H3: ODST: Complete any level without using a health pack on Heroic or Legendary.

Rare

7.70%last reported global rate

477

Piece of Cake

Halo 4: Beat the par time on Dawn.

Rare

7.80%last reported global rate

478

Ice In Your Veins

Halo: Reach: Beat the par score on Winter Contingency.

Rare

7.90%last reported global rate

479

Medal Completionist

Collect 10,000 campaign or playlist medals.

Rare

7.90%last reported global rate

480

Wiretapping

H3: ODST: Find the 9th Audio Log.

Rare

7.90%last reported global rate