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