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