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