Brownie is a term used to describe a strictly out-of-play currency used by Echoes. Brownie can be earned by completing a monster shift, playing as a full-time NPC over an entire game, donating pre-approved materials and supplies, assisting with load-out and packing for the games, and other approved tasks.
Currently, these are the exchanges for Brownie:
3 brownie = 1 extra downtime (bought at the end of the current event, limit one per game)
3 brownie = 1 CP (bought at the end of the current event, limit one per game)
15 brownie = 5 CP (once ever per character, added in after the first game as that character)
Brownie from Echoes can also be spent at Fractured, our sister game.