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.
Perform 30 Environmental Executions In Forbidden Forest.
Achieve Rank 200 In Multiplayer.
Fight On Each Multiplayer Arena Environment.
Complete Barbarous.
Achieve Rank 150 In Multiplayer.
Collect All The Chronicles.
Collect All The Scrolls.
Collect All The Vistas.
Get In Combat With All Executions And Upgrades Purchased.
Complete The Son Of Rome On Legendary Difficulty.
Complete The Game On Centurion Difficulty.
Complete The Wrath of Nemesis On Legendary Difficulty.
Complete A Comic Book By Collecting 6 Chronicles In A Level.
Complete Pax Romanum On Legendary Difficulty.
Equip Your First Tier 6 Item In Multiplayer.
Complete Edge Of The World Legendary Any Difficulty.
Complete The King On Legendary Difficulty.
Complete Trial By Fire On Legendary Difficulty.
Achieve Rank 100 In Multiplayer.
Survive For 7 Minutes In Firestorm (Survival Mode).
Survive For 7 Minutes In Courtyard (Survival Mode).
Equip Your First Tier 5 Item In Multiplayer.
Unlock All The Rewards Of The Gods.
Complete Invictus.
Revive Another Player 3 Times.
Play A Round Of Survival On Island.
Play A Round Of Survival Mode.
Survive For 7 Minutes In Dockyard (Survival Mode).
Perform 1000 Executions In Multiplayer.
Perform A Co-op Execution.
Complete S.P.Q.R. On Legendary Difficulty.
Complete The Beginning On Legendary Difficulty.
Replay Any Single Player Level.
Complete False Gods.
Unlock The First Reward Of The Gods.
Complete 20 Multiplayer Campaigns.
Defeat 25 Enemies In A Row Without Sustaining Damage.
Equip Your First Rare Item In Multiplayer.
Equip Your First Tier 2 Item In Multiplayer.
Complete Beacon.
Perform 50 Double Executions In Any Game Mode.
Defeat 100 Enemies In Multiplayer.
Complete Your First Multiplayer Campaign.
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.
Complete Edge Of The World On Any Difficulty.
Defeat Glott.
Use An Execution To Set Fire To An Enemy.
Complete The King On Any Difficulty.
Meet Boudica.
Complete Trial By Fire On Any Difficulty.
Kill An Enemy By Perfectly Deflecting An Arrow.
Perform 100 Executions In Any Game Mode.
Complete S.P.Q.R. On Any Difficulty.
Perform Your First Environmental Execution.
Collect Your First Vista.
Collect One Chronicle.
Collect One Scroll.
Defeat 10 Enemies In A Row Without Sustaining Any Damage.
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.
Perform 30 Environmental Executions On Island.