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