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