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