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