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