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