No missable achievements (plus 86 unknown)
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Perform Your First Combat Execution
Meet Nero
Purchase And Use An Upgrade In Combat
Complete The Beginning On Any Difficulty
Perform Your First Environmental Execution
Find Your Mother And Sister
Collect One Scroll
Defeat 10 Enemies In A Row Without Sustaining Any Damage
Collect Your First Vista
Complete S. P. Q. R. On Any Difficulty
Collect One Chronicle
Perform 100 Executions In Any Game Mode
Complete Trial By Fire On Any Difficulty
Complete The King On Any Difficulty
Meet Boudica
Defeat Glott
Complete Edge Of The World On Any Difficulty
Find Out What Really Happened To Your Parents
Complete Pax Romana On Any Difficulty
Become The Righteous Hand Of Vengeance
Defeat Commodus
Complete The Wrath Of Nemesis On Any Difficulty
Defeat Boudica
Complete The Son Of Rome On Any Difficulty
Complete The Game On Any Difficulty
Save the Emperor (finish chapter 1) and then kill him (finish chapter 8)
Use A Trap To Kill An Enemy
Complete Your First Multiplayer Campaign
Use An Execution To Set Fire To An Enemy
Complete The Game On Soldier Difficulty
Replay Any Single-Player Level
Complete 15 executions in a single multiplayer game
Defeat 100 Enemies In Multiplayer
Kill An Enemy By Perfectly Deflecting An Arrow
Perform A Co-op Execution
Revive Another Player 3 Times
Equip Your First Rare Item In Multiplayer
Defeat 25 Enemies In A Row Without Sustaining Any Damage
Unlock The First Reward Of The Gods
Complete The Game On Centurion Difficulty
Equip Your First Tier 2 Item In Multiplayer
Play a Round of Survival Mode on Courtyard, Firestorm, or Dockyard
Perform 50 Double Executions In Any Game Mode
Complete 20 Multiplayer Campaigns
Complete Beacon
Complete The Beginning On Legendary Difficulty
Complete False Gods
Get In Combat With All Executions And Upgrades Purchased
Play a Round of Survival on Island
Complete S. P. Q. R. On Legendary Difficulty
Fight On Each Multiplayer Arena Environment
Complete Barbarous
Complete Trial by Fire On Legendary Difficulty
Perform 1000 Executions in Multiplayer
Complete Invictus
Complete The King On Legendary Difficulty
Unlock All The Rewards Of The Gods
Complete A Comic Book By Collecting 6 Chronicles In A Level
Complete Edge Of The World On Legendary Difficulty
Complete Pax Romana On Legendary Difficulty
Complete The Wrath of Nemesis On Legendary Difficulty
Complete The Son of Rome On Legendary Difficulty
Survive For 7 Minutes in Courtyard (Survival Mode)
Survive For 7 Minutes in Firestorm (Survival Mode)
Survive For 7 Minutes in Dockyard (Survival Mode)
Collect All The Vistas
Collect All The Scrolls
Collect All The Chronicles
Equip Your First Tier 5 Item In Multiplayer
Achieve Rank 100 In Multiplayer
Equip Your First Tier 6 Item in Multiplayer
Perform 30 Environmental Executions on Island
Achieve Rank 150 in Multiplayer
Play seven multiplayer games on Barbarous
Perform 30 Environmental Executions in Forbidden Forest
Achieve Rank 200 in Multiplayer