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