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