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