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