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