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