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