Hades

Clear Tartarus

Clear Asphodel

Clear Elysium

Clear Elysium with the 'Extreme Measures' Condition

Clear an Infernal Gate without taking damage

Clear an escape attempt

Clear an escape attempt with a hidden Weapon Aspect

Earn a Loyalty Card

Earn the first of Skelly's prizes

Earn the second of Skelly's prizes

Unlock each standard Keepsake

Equip a Chthonic Companion

Max any Weapon Aspect

Choose 100 different Olympian Boon effects

Purge a Legendary Boon

Choose 50 different Daedalus Hammer enchantments

Unlock each of the Infernal Arms

Forge a bond with any character

Fully Unlock the Olympians' Codex entries

Trade 20 times with the Wretched Broker

Pay for 50 jobs from the House Contractor

Fulfill any 15 Prophecies

Catch a fish from each region

Compel Orpheus to sing again

Have at least one rank in each Mirror of Night Talent

Fulfill the 'Night and Darkness' Prophecy

Fulfill the 'Chthonic Colleagues' Prophecy

Fulfill the 'Musician and Muse' Prophecy

Fulfill the 'Master of Arms' Prophecy

Fulfill the 'Slashed Benefits' Prophecy

Earn access to and enter the Administrative Chamber

Complete the main quest in the story

Buy 9 'Well of Charon' items in one escape attempt

Get 20% dodge chance with the Lambent Plume

Beat Thanatos by 15 kills or more

Use Greater Call to invoke an Olympian's aid

Use an Olympian's Greater Call against them in a Trial

Slay Skelly 15 times

Pet Cerberus 10 times