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 Chronicles.
Complete 20 Multiplayer Campaigns.
Unlock The First Reward Of The Gods.
Complete The Son Of Rome On Legendary Difficulty.
Complete The Game On Centurion Difficulty.
Collect All The Scrolls.
Collect All The Vistas.
Complete The Wrath of Nemesis On Legendary Difficulty.
Equip Your First Rare Item In Multiplayer.
Equip Your First Tier 2 Item In Multiplayer.
Complete Pax Romanum On Legendary Difficulty.
Complete False Gods.
Complete Edge Of The World Legendary Any Difficulty.
Complete The King On Legendary Difficulty.
Complete A Comic Book By Collecting 6 Chronicles In A Level.
Get In Combat With All Executions And Upgrades Purchased.
Complete Trial By Fire On Legendary Difficulty.
Complete Beacon.
Complete S.P.Q.R. On Legendary Difficulty.
Complete The Beginning On Legendary Difficulty.
Defeat 25 Enemies In A Row Without Sustaining Damage.
Replay Any Single Player Level.
Complete Invictus.
Complete Barbarous.
Perform 50 Double Executions In Any Game Mode.
Defeat 100 Enemies In Multiplayer.
Complete Your First Multiplayer Campaign.
Use A Trap To Kill An Enemy.
Complete The Son Of Rome On Any Difficulty.
Complete The Game on Any Difficulty.
Complete The Game On Soldier 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.
Kill An Enemy By Perfectly Deflecting An Arrow.
Complete Edge Of The World On Any Difficulty.
Defeat Glott.
Use An Execution To Set Fire To An Enemy.
Complete The King On Any Difficulty.
Meet Boudica.
Collect One Chronicle.
Complete Trial By Fire On Any Difficulty.
Perform 100 Executions In Any Game Mode.
Complete S.P.Q.R. On Any Difficulty.
Collect Your First Vista.
Collect One Scroll.
Find Your Mother And Sister.
Complete The Beginning On Any Difficulty.
Purchase And Use An Upgrade In Combat.
Meet Nero.
Defeat 10 Enemies In A Row Without Sustaining Any Damage.
Perform Your First Environmental Execution.
Perform Your First Combat Execution.
Perform A Co-op Execution.
Fight On Each Multiplayer Arena Environment.
Revive Another Player 3 Times.
Achieve Rank 100 In Multiplayer.
Unlock All The Rewards Of The Gods.
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.