Give Nectar to an NPC to receive their Keepsake — an equippable trinket you can swap at the start of each biome for a powerful edge. There are 25 standard ones, and each levels up the more you use it: 25 cleared Encounters takes it to rank 2, another 50 to max rank 3. The right one at the right moment shapes an entire run.
Survival & utility
God keepsakes
- Each Olympian's keepsake (e.g. Thunder Signet from Zeus) guarantees that god's Boon appears the first time any god boon is offered — not necessarily in the very first chamber.
- Hermes and Chaos are the exception: neither runs on this guarantee, since Hermes can appear on his own regardless of keepsake, and his own keepsake (Lambent Plume) is a straight stat bonus instead.
- Higher keepsake rank raises the odds of a Rare or better boon from that first offer.
- Rotate to a different god keepsake each biome to steer your build as it develops.
Swapping strategy
- Biome 1: a god keepsake to seed your build, or Lucky Tooth for a safety net.
- Mid-run: Old Spiked Collar or Pierced Butterfly for the Elysium difficulty spike.
- Before the boss room: Eurydice's Evergreen Acorn works with any weapon and absorbs up to six hits against a boss only — useless against regular rooms, so swap it in right before you fight, not before.
- Buy the Rod of Fishing from the House Contractor to reveal fishing spots; the Head Chef pays resources for every catch.