Welcome! To make worldst better, we need all content to be tagged. A "tag" is a short freeform label that you can apply to any element of the game to describe it. For example, the character "Dracula" could have tags "vampire undead fictional book movie fangs horror". An item "lightsaber" could have the tags "weapon laser civilized jedi starwars movie scifi"

We use then the tags to relate all the elements of the game. For example, on an challenge with a character with tag "jedi", you'll be more likely to get a lightsaber as a reward for solving the challenge, because they'll have several tags in common.