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