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