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 Courtyard (Survival Mode).
Survive For 7 Minutes In Firestorm (Survival Mode).
Revive Another Player 3 Times.
Play A Round Of Survival Mode.
Perform A Co-op Execution.
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.
Perform 1000 Executions In Multiplayer.
Unlock All The Rewards Of The Gods.
Complete 20 Multiplayer Campaigns.
Equip Your First Rare Item In Multiplayer.
Equip Your First Tier 2 Item In Multiplayer.
Unlock The First Reward Of The Gods.
Complete Beacon.
Complete Invictus.
Complete False Gods.
Complete Barbarous.
Defeat 100 Enemies In Multiplayer.
Complete Your First Multiplayer Campaign.
Use A Trap To Kill An Enemy.
Collect All The Vistas.
Collect All The Chronicles.
Collect All The Scrolls.
Complete A Comic Book By Collecting 6 Chronicles In A Level.
Get In Combat With All Executions And Upgrades Purchased.
Complete The Son Of Rome On Legendary Difficulty.
Complete The Wrath of Nemesis On Legendary Difficulty.
Complete Pax Romanum On Legendary Difficulty.
Perform 50 Double Executions In Any Game Mode.
Complete Edge Of The World Legendary Any Difficulty.
Complete The King On Legendary Difficulty.
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 Game On Centurion Difficulty.
Complete The Son Of Rome On Any 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.
Complete Edge Of The World On Any Difficulty.
Defeat Glott.
Complete The King On Any Difficulty.
Meet Boudica.
Use An Execution To Set Fire To An Enemy.
Complete Trial By Fire On Any Difficulty.
Kill An Enemy By Perfectly Deflecting An Arrow.
Complete S.P.Q.R. On Any Difficulty.
Perform 100 Executions In Any Game Mode.
Defeat 25 Enemies In A Row Without Sustaining Damage.
Collect One Scroll.
Find Your Mother And Sister.
Complete The Beginning On Any Difficulty.
Collect Your First Vista.
Collect One Chronicle.
Defeat 10 Enemies In A Row Without Sustaining Any Damage.
Purchase And Use An Upgrade In Combat.
Meet Nero.
Perform Your First Environmental Execution.
Perform Your First Combat Execution.