sidequest

noun3

1. •
   In fictional or historical writings about chivalric romances: a quest embarked upon by a knight or other person which is not the main quest.
2. •
   A quest given to a player which has no direct bearing on the outcome of the main campaign or story of a video game, but often provides additional rewards.

   • Completion of a sidequest often results in the acquisition of money or items that are otherwise unavailable, or unlocks another sidequest.
3. •
   (Internet) A real-world action or task which a person does in addition to or instead of a main action or task; a diversion.

   • That celebrity keeps completing random sidequests like hosting award shows.