Here is the full list of all 73 Ryse: Son of Rome achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Complete A Comic Book By Collecting 6 Chronicles In A Level.
Complete False Gods.
Equip Your First Tier 2 Item In Multiplayer.
Complete Beacon.
Complete The Game On Centurion Difficulty.
Complete The Son Of Rome On Legendary Difficulty.
Complete The Wrath of Nemesis On Legendary Difficulty.
Complete Pax Romanum On Legendary Difficulty.
Complete Edge Of The World Legendary Any Difficulty.
Complete The King On Legendary Difficulty.
Complete Trial By Fire On Legendary Difficulty.
Perform 50 Double Executions In Any Game Mode.
Complete S.P.Q.R. On Legendary Difficulty.
Complete The Beginning On Legendary Difficulty.
Complete Invictus.
Complete Barbarous.
Get In Combat With All Executions And Upgrades Purchased.
Complete The Game On Soldier Difficulty.
Defeat 25 Enemies In A Row Without Sustaining Damage.
Defeat 100 Enemies In Multiplayer.
Complete Your First Multiplayer Campaign.
Kill An Enemy By Perfectly Deflecting An Arrow.
Use An Execution To Set Fire To An Enemy.
Replay Any Single Player Level.
Complete The Son Of Rome On Any Difficulty.
Complete The Game on Any Difficulty.
Defeat Boudica.
Use A Trap To Kill An Enemy.
Complete The Wrath Of Nemesis On Any Difficulty.
Defeat Commodus.
Become The Righteous Hand Of Vengeance.
Perform 100 Executions In Any Game Mode.
Complete Pax Romanum On Any Difficulty.
Find Out What Really Happened To Your Parents.
Perform Your First Environmental Execution.
Complete Edge Of The World On Any Difficulty.
Defeat Glott.
Complete The King On Any Difficulty.
Meet Boudica.
Complete Trial By Fire On Any Difficulty.
Complete S.P.Q.R. On Any Difficulty.
Collect One Chronicle.
Collect One Scroll.
Collect Your First Vista.
Defeat 10 Enemies In A Row Without Sustaining Any Damage.
Find Your Mother And Sister.
Complete The Beginning On Any Difficulty.
Purchase And Use An Upgrade In Combat.
Meet Nero.
Perform Your First Combat Execution.
Perform A Co-op Execution.
Collect All The Vistas.
Collect All The Scrolls.
Collect All The Chronicles.
Complete 20 Multiplayer Campaigns.
Fight On Each Multiplayer Arena Environment.
Revive Another Player 3 Times.
Achieve Rank 100 In Multiplayer.
Unlock The First Reward Of The Gods.
Unlock All The Rewards Of The Gods.
Equip Your First Rare Item In Multiplayer.
Equip Your First Tier 5 Item In Multiplayer.
Play A Round Of Survival Mode.
Equip Your First Tier 6 Item In Multiplayer.
Survive For 7 Minutes In Courtyard (Survival Mode).
Survive For 7 Minutes In Firestorm (Survival Mode).
Survive For 7 Minutes In Dockyard (Survival Mode).
Achieve Rank 150 In Multiplayer.
Perform 30 Environmental Executions On Island.
Play A Round Of Survival On Island.
Perform 30 Environmental Executions In Forbidden Forest.
Achieve Rank 200 In Multiplayer.
Perform 1000 Executions In Multiplayer.