Here is the full list of all 49 Hades achievements worth 1,000 gamerscore. It takes around 60-80 hours to unlock all of the achievements on Xbox One.
Unlock all Weapon Aspects
Max-rank each standard Keepsake
Clear an escape attempt with a hidden Weapon Aspect
Earn all Chthonic Companions
Fulfill the 'End to Torment' Prophecy
Reach the epilogue of the story
Fulfill the 'Night and Darkness' Prophecy
Fulfill the 'Harsh Conditions' Prophecy
Get 20% dodge chance with the Lambent Plume
Earn the second of Skelly's prizes
Fulfill the 'Dark Reflections' Prophecy
Choose 50 different Daedalus Hammer enchantments
Use an Olympian's Greater Call against them in a Trial
Fulfill the 'Divided by Death' Prophecy
Fulfill the 'Slashed Benefits' Prophecy
Equip a Chthonic Companion
Fulfill the 'Musician and Muse' Prophecy
Fully Unlock the Olympians' Codex entries
Earn the first of Skelly's prizes
Get 30% bonus damage with the Pierced Butterfly
Purge a Legendary Boon
Clear Elysium with the 'Extreme Measures' Condition
Pay for 50 jobs from the House Contractor
Clear an Erebus Gate without taking damage
Fulfill any 15 Prophecies
Fulfill the 'Master of Arms' Prophecy
Unlock each standard Keepsake
Complete the main quest in the story
Have at least one rank in each Mirror of Night Talent
Fulfill the 'War-God's Bloodlust' Prophecy
Earn a Loyalty Card
Choose 100 different Olympian Boon effects
Compel Orpheus to sing again
Earn access to and enter the Administrative Chamber
Trade 20 times with the Wretched Broker
Clear an escape attempt
Catch a fish from each region
Forge a bond with any character
Clear Elysium
Buy 9 'Well of Charon' items in one escape attempt
Beat Thanatos by 15 kills or more
Fulfill the 'Chthonic Colleagues' Prophecy
Slay Skelly 15 times
Max any Weapon Aspect
Unlock each of the Infernal Arms
Pet Cerberus 10 times
Clear Asphodel
Use Greater Call to invoke an Olympian's aid
Clear Tartarus