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