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