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