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