Here is the full list of all 49 Hades achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Fulfill the 'Dark Reflections' Prophecy
Fulfill the 'Harsh Conditions' Prophecy
Earn the second of Skelly's prizes
Reach the epilogue of the story
Trade 20 times with the Wretched Broker
Get 20% dodge chance with the Lambent Plume
Get 30% bonus damage with the Pierced Butterfly
Unlock all Weapon Aspects
Earn all Chthonic Companions
Max-rank each standard Keepsake
Earn a Loyalty Card
Unlock each standard Keepsake
Clear Elysium with the 'Extreme Measures' Condition
Purge a Legendary Boon
Complete the main quest in the story
Use an Olympian's Greater Call against them in a Trial
Earn the first of Skelly's prizes
Have at least one rank in each Mirror of Night Talent
Buy 9 'Well of Charon' items in one escape attempt
Fulfill the 'End to Torment' Prophecy
Fulfill the 'Slashed Benefits' Prophecy
Catch a fish from each region
Beat Thanatos by 15 kills or more
Fulfill the 'Night and Darkness' Prophecy
Fulfill the 'Divided by Death' Prophecy
Use Greater Call to invoke an Olympian's aid
Clear an Infernal Gate without taking damage
Clear an escape attempt with a hidden Weapon Aspect
Clear an escape attempt
Fully Unlock the Olympians' Codex entries
Pay for 50 jobs from the House Contractor
Compel Orpheus to sing again
Fulfill the 'Musician and Muse' Prophecy
Earn access to and enter the Administrative Chamber
Choose 100 different Olympian Boon effects
Choose 50 different Daedalus Hammer enchantments
Clear Elysium
Pet Cerberus 10 times
Max any Weapon Aspect
Forge a bond with any character
Clear Tartarus
Slay Skelly 15 times
Equip a Chthonic Companion
Fulfill the 'Master of Arms' Prophecy
Clear Asphodel
Fulfill the 'War-God's Bloodlust' Prophecy
Fulfill the 'Chthonic Colleagues' Prophecy
Unlock each of the Infernal Arms
Fulfill any 15 Prophecies