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