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