- Natural intelligence
Played a Skirmish match alone against only AI opponents (1 or more)
20 February 2018 - 3 guides
- The hand that feeds
Killed a unit owned by a developer or someone who has this achievement
30 January 2018 - 3 guides
- Collecting a dream
Collected all the Skulls
24 September 2017 - 5 guides
- Know the ropes
Completed the Advanced standalone tutorial
- Paint it red
Achieved the highest possible kill-streak in any Blitz mode
14 February 2017 - 3 guides
- All or nothing
Played all cards in your deck at least once in a single Blitz match
14 February 2017 - 3 guides
- Firefighter
Beat wave 10 in Blitz Firefight
14 February 2017 - 3 guides
- A little bit extra
Completed half of the Campaign bonus objectives
- Ante-up
Completed the Blitz tutorial
- This war is over
Completed the Campaign
- Last stop, this town
Completed Last Stand
- Sentinel size matters
Completed The Halo
- Fifth floor: Tools, Guns, Super Weapons
Completed The Foundry
- And the knockout punch
Completed Under the Dark
- The setup …
Completed Hold the Line
- Morbid curiosities
Collected half of the Skulls
12 February 2017 - 3 guides
- Behind enemy lines
Completed From the Deep
- All travel is suspended
Completed Lights Out
- Stirring the pot
Completed The Cartographer
- Guerilla tactics
Completed One Three Zero
- Dominated
Completed Ascension
- A history of decimation
Completed A New Enemy
- Gold rush
Earned a gold medal on any mission (except Prologue) on any difficulty
- Alas, poor Yorick!
Collected a Skull
- Wake up
Completed The Signal
- Learn the ropes
Completed the Basic standalone tutorial
- It just keeps going
Beat wave 25 in Blitz Firefight
Locked - 5 guides
- Two heads are better than one
Complete a mission in co-op
Locked - 2 guides
- The hard fight
Complete the Campaign on Heroic (original campaign)
- Surviving the long war
Complete the Campaign on Legendary (original campaign)
Locked - 2 guides
- Palmer's Pure Gold
Earn a gold medal on every mission (except Prologue) on any difficulty (original campaign)
- Lone Wolf
Complete any solo mission on Legendary (except The Signal) with all skulls on (original campaign)
- Comrades in arms
Earn a gold medal on any mission (except The Signal) in Co-op on Legendary (original campaign)
Locked - 3 guides
- A lot extra
Complete all the Campaign bonus objectives (original campaign)
- The Scrappy Six
Complete a Multiplayer match as each of the 6 launch leaders (Matchmaking only)
Locked - 2 guides
- First steps
Complete a Multiplayer match (Matchmaking only)
- Two heads are better than none
Win a Skirmish match with a friend against only AI opponents (2 or more)
- You've got a case of the Birley
In a 1v1 Skirmish against Legendary AI, recycle your base in the first 5 minutes and then win
Locked - 9 guides
- The rank and file
Recruit or construct 1 of each UNSC unit in Multiplayer or Skirmish (Launch units only)
Locked - 2 guides
- The tribe
Recruit or construct 1 of each Banished unit in Multiplayer or Skirmish (Launch units only)
- Trash compactor
Destroy 100 vehicles with anti-vehicle units (Multiplayer, Skirmish or Blitz)
Locked - 2 guides
- Flyswatter
Destroy 100 air units with anti-air units (Multiplayer, Skirmish or Blitz)
Locked - 3 guides
- Meat grinder
Kill 100 infantry with anti-infantry units (Multiplayer, Skirmish or Blitz)
Locked - 2 guides
- Spare change
Spend 5 Leader Points in Multiplayer, Skirmish or Terminus Firefight
Locked - 2 guides
- Big Spender
Spend 100 Leader Points in Multiplayer, Skirmish or Terminus Firefight
- Space Healer
Cast 100 Healing Leader Powers (Multiplayer, Skirmish or Blitz)
Locked - 5 guides
- Overkill
Destroy 500 units with Leader Powers (Multiplayer, Skirmish or Blitz)
Locked - 2 guides
- Making the most of the day
Complete 3 Daily Challenges in one day
- A strong showing for the week
Complete a set of 3 Weekly Challenges in one week
- Short-term commitment
Complete at least 1 Daily Challenge each day for a week
Locked - 2 guides
- Long-term commitment
Complete at least 1 Weekly Challenge each week for a month
Locked - 2 guides
- Duellist
Win your first Blitz match (Matchmaking only)
- Card shark
Complete 25 Blitz matches (Matchmaking only)
- Full house
Complete Blitz matches as each of the 6 launch leaders (Matchmaking only)
Locked - 2 guides
- Stacked the chips
Gather 150 Energy Crates over any number of Blitz matches
Locked - 2 guides
- Jackpot
Play 777 total Blitz cards over any number of matches
- On fire
Score 500,000 points in a single Blitz Firefight
Locked - 3 guides
- Spreading Darkness
Win 3 matches as Voridus (Multiplayer, Skirmish or Blitz)
- Cataclysmic
Kill 50 units with Cataclysm (Multiplayer, Skirmish, or Blitz)
Locked - 2 guides
- Revel in Destruction
Use Invigorating Frenzy 50 times
- Unbreakable
Win 3 matches as Pavium (Multiplayer, Skirmish or Blitz)
Locked - 2 guides
- Marked for Death
Paint units using Pavium or Orbital Designator 30 times (Multiplayer, Skirmish, or Blitz)
- The Long Game
Kill 50 units with Mega Turrets (Multiplayer, Skirmish, or Blitz)
- Smash!
Gain a gold medal and complete all objectives in ‘What Could Go Wrong?’
Locked - 2 guides
- Serving a New Master
Complete 'What Could Go Wrong?' on any difficulty
- Hold the Line(s)
Gain a gold medal and complete all objectives in ‘Fighting Retreat’
Locked - 3 guides
- The Wave Breaks
Complete 'Fighting Retreat' on any difficulty
- Hidden Power
Gain a gold medal and complete all objectives in ‘Light the Fuse’
Locked - 2 guides
- Tapped
Complete 'Light the Fuse' on any difficulty
- We Got This
Reach the final room of The Archive without calling in reinforcements from the teleporters.
- Nimble, for a Big Fella
Navigate the laser defenses in The Archive without losing any units on Heroic or above.
Locked - 3 guides
- Have You Tried Rebooting?
Complete 'The Archive' on any difficulty
- Before This Gets Out of Hand
Complete 'Manifestation' without the Proto-Gravemind exceeding 50% critical mass
Locked - 2 guides
- Clean up your Mess
Complete 'Manifestation' on any difficulty
- Banished Prowess
Beat any level on legendary in par time with a scoring skull active (AtN only)
Locked - 3 guides
- The Brute Side
Collect every Phoenix Log collectable in 'Awakening the Nightmare'
- Awake
Complete the 'Awakening the Nightmare' campaign on any difficulty
- Again with the Tentacles
Complete the 'Awakening the Nightmare' campaign on Heroic or higher
- The Ancient Enemy
Complete the 'Awakening the Nightmare' campaign on Legendary
Locked - 3 guides
- Watch My Six
Complete wave 20 in co-op as a UNSC/Banished partnership (Terminus Firefight)
- Outflood the Flood
Build and hold a minibase on every slot of a map at the same time (Terminus Firefight)
- Ka-Ching!
Destroy 20 bonus drops in a single game (Terminus Firefight)
- High Maintenance
Build 50 barricades in a single game (Terminus Firefight)
- Turret Farmer
Build 50 turrets in a single game (Terminus Firefight)
- Pristine
Prevent the Terminus from taking any damage for 15 waves (Terminus Firefight)
Locked - 2 guides
- Walled In
Have a wall built on every plot of the map at the same time (Terminus Firefight)
Locked - 2 guides
- Survivor
Finish wave 5 without training additional units (Terminus Firefight)
Locked - 2 guides
- Terminus Defender
Get a player score of 500,000 (Terminus Firefight)
- Terminus Tactician
Get a player score of 1,000,000 (Terminus Firefight)
- Terminus Teamwork
Get a team score of 2,000,000 (Terminus Firefight)
- Terminus MVPs
Get a team score of 5,000,000 (Terminus Firefight)
Locked - 2 guides
- Garrison
Finish wave 10 (Terminus Firefight)
- Fortress
Finish wave 30 (Terminus Firefight)
- Barricade
Finish wave 20 (Terminus Firefight)