“ Throw in a handful of random customs - like women or men of a certain level of society being required to wear a veil or a pendant of some type.”
“ Game Cliche 2.
Upon learning about 'the five ancient jewels' or 'the nine legendary icons' or whatever, you can be quite confident that Saving the World will require you to go out and find every last one of them.”
“ Village has a nearby natural substance that comes from the ground and burns well when lit. They use it only locally and try not to let the secret get out.”