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