Nanite Points

Nanite Points, or NPs, are a scorekeeping measure and a sort of currency awarded to players based on their behaviors and accomplishments. Skill advancement, and the stat gains and resulting EPs and healing, require NPs. This makes them a critical resource for players.

Earning NPs
An exhaustive list is here. NPs are awarded for:
 * Completing challenges.
 * Performing a game-impacting action the first time. (Looking at wristband messages, starting a fire, rendering medical aid to allies.) These actions often also grant skills (and stats), making them especially important.
 * Honoring a fallen ally.
 * Defeating a monster. So far, this has been how players have earned most NPs.

Wristband Interface
[Nanite Points, or NPs, are rewarded for performing certain actions or accomplishing certain goals. NPs can be spent to upgrade skills, purchase equipment or provisions from vendors, and more.]