Hades

Requirements: This cannot be done until you've completed the main story quest (10 full clears) because one of the Keepsakes cannot be earned until you've escaped at least once, and another Keepsake is not available to earn until the main story is complete.


To earn this trophy, you'll need to collect all 25 Keepsakes in the game. Keepsakes are trinkets; items you can equip that give you a passive buff during your escapes. You can equip them from the display case in the Courtyard, where the weapons are. You'll not only need to obtain all 25 Keepsakes, but you'll also need to max them out for Friends Forever . This is done by completing multiple runs while equipping them. (See Friends Forever  for more information.)

These Keepsakes are given to you as a gift in exchange for the first bottle of Nectar you give that person. Bottles of Nectar is one of the many collectibles/currencies in the game, which you can earn by clearing certain chambers, completing Fated Prophecies, or trading 10 Keys for 1 Nectar at the Wretched Broker.

Although you cannot complete the trophy until you finish the story, you should begin working on this immediately. As soon as you begin your runs, start handing out 1 Nectar to everyone you can right away. This includes the Gods as well as the people at home. To gift Nectar to the Olympian Gods, you'll first have to find that God's boon during your run. Approach it but do not accept the Boon yet! If you have Nectar, when you approach any Boon, underneath the normal command for accepting it should now be a secondary command to Give Nectar by pressing . Once that's done, then you can accept the Boon as usual.  

TIP: In my opinion, Skelly's keepsake is one of the best Keepsakes in the game, from beginning to end. It gives you one extra life per escape attempt, so make sure he's one of the first to whom you give a Nectar. Another one I love is Dusa's Harpy Feather Duster, which gives you a % chance to find healing items in urns, and there's always 1 in every chamber. 

For a complete list of all Keepsakes in the game, who they're from, and what they do, see below [SPOILER WARNING]: 

Each Keepsake's description contains the effects of Level 1/Level 2/Level 3.

1. Old Spiked Collar (Cerberus) - Gain +25/38/50 Max Health.
2. Myrmidon Bracer (Achilles) - Take 20/25/30% less damage from the front, but +10% from behind.
3. Black Shawl (Nyx) - Deal +10/15/20% more damage striking undamaged foes; also striking foes from behind.
4. Pierced Butterfly (Thanatos) - Gain +1/1.5/2% more damage for each Encounter you clear without taking damage.
5. Bone Hourglass (Charon) - Items from the Well of Charon have durations increased by +4/6/8 Encounters.
6. Chthonic Coin Purse (Hypnos) - Receive +100/125/150 obols (gold coins) to spend as you please (once per escape attempt).
7. Skull Earring (Megaera) - Deal +20/30/40% more damage while at 35% Health or less.
8. Distant Memory (Orpheus) - Deal +10/20/30% more damage to distant foes.
9. Harpy Feather Duster (Dusa) - Broken urns have a 3/5/6% chance to contain healing items.
10. Lucky Tooth (Skelly) - Automatically restore up to 50/75/100 Health when your Life Total is depleted (once per escape attempt).
11. Thunder Signet (Zeus) - The next boon you find will be from Zeus. His blessings have a +10/15/20% chance to be Rare or better.
12. Conch Shell (Poseidon) - The next boon you find will be from Poseidon. His blessings have a +10/15/20% chance to be Rare or better.
13. Owl Pendant (Athena) - The next boon you find will be from Athena. Her blessings have a +10/15/20% chance to be Rare or better.
14. Eternal Rose (Aphrodite) - The next boon you find will be from Aphrodite. Her blessings have a +10/15/20% chance to be Rare or better.
15. Blood-Filled Vial (Ares) - The next boon you find will be from Ares. His blessings have a +10/15/20% chance to be Rare or better.
16. Adamant Arrowhead (Artemis) - The next boon you find will be from Artemis. Her blessings have a +10/15/20% chance to be Rare or better.
17. Overflowing Cup (Dionysus) - The next boon you find will be from Dionysus. His blessings have a +10/15/20% chance to be Rare or better.
18. Lambent Plume (Hermes) - The next boon you find will be from Hermes. His blessings have a +10/15/20% chance to be Rare or better.
19. Frostbitten Horn (Demeter) - The next boon you find will be from Demeter. Her blessings have a +10/15/20% chance to be Rare or better.
20. Cosmic Egg (Chaos) - Enter Chaos Gates without losing Health. Blessings from Chaos have a +20/30/40% chance to be Rare or better.
21. Shattered Shackle (Sisyphus) - Your Attack, Special, and Cast each deal +50/75/100% more damage while not empowered by a Boon.
22. Evergreen Acorn (Eurydice) - In the final Encounter in each Underworld region, take 0 damage the first 3/4/5 times foes hit you.
23. Broken Spearpoint (Patroclus) - After taking damage, become invulnerable for 1/1.2/1.5 seconds. Refreshes after 7 seconds.
24. Pom Blossom (Persephone)* - After every 6/5/4 Encounters, gain +1 Lv. (a random Boon grows stronger).
25. Sigil of the Dead (Hades)** - Your Call skill becomes "Hades' Aid", which briefly makes you Invisible; your God Gauge starts at 10/20/30% full.

* The Pom Blossom (#24-Persephone) cannot be earned until you've successfully escaped at least 1x and can speak to and give Nectar to Persephone at her cottage.
** The Sigil of the Dead (#25-Hades) is the only one that requires 2 gifts of Nectar rather than 1. The first can be given much earlier, but the second Nectar cannot be given until you've finished the story (10 full clears), at which point the option will finally show up, although it might take a few more runs.