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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.

441
Emergency Shutdown

Halo 4: Beat the par score on Shutdown.

Rare
6.00%last reported global rate
442
Forged in Fire

Win 100 multiplayer games.

Rare
6.10%last reported global rate
443
I Love My Job

H3: ODST: Beat the par score on ONI Alpha Site.

Rare
6.10%last reported global rate
444
Skulltaker Halo 3: Iron

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

Rare
6.10%last reported global rate
445
Big Time Gamer

Complete 400 missions or multiplayer games.

Rare
6.20%last reported global rate
446
Exterminator

Halo 3: Beat the par score on Floodgate.

Rare
6.20%last reported global rate
447
Skulltaker Halo 3: Mythic

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

Rare
6.40%last reported global rate
448
Reviewer

Halo 2: Activate Terminal 12 on High Charity.

Rare
6.60%last reported global rate
449
Rising Waters

Halo 3: Activate Terminal 1 on The Ark.

Rare
6.60%last reported global rate
450
Gods Must Be Strong

Halo: Reach: Complete every level of the game on Legendary difficulty.

Rare
6.70%last reported global rate
451
Monitored

H3: ODST: Find the 10th Audio Log.

Rare
6.70%last reported global rate
452
Hero

Halo 2: Complete every level of the game on Heroic difficulty.

Rare
6.90%last reported global rate
453
Requiescat in Pace

Halo: Reach: Complete 10 assassinations on enemy players.

Rare
6.90%last reported global rate
454
Skulltaker Halo: CE: Famine

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

Rare
6.90%last reported global rate
455
Thanks A Killion

Kill 20,000 enemies or players.

Rare
6.90%last reported global rate
456
Veteran

Complete all campaigns on Normal difficulty.

Rare
6.90%last reported global rate
457
Pillar of Awesome

Halo CE: Beat the par score on The Pillar of Autumn.

Rare
7.00%last reported global rate
458
Reading Room

Halo CE: Beat the par score on The Library.

Rare
7.00%last reported global rate
459
Committed

Complete 350 missions or multiplayer games.

Rare
7.10%last reported global rate
460
Run and Gunned

Halo: Reach: Headshot 10 enemies while they are sprinting.

Rare
7.10%last reported global rate