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