Creepers are Minecraft's most iconic mob, and for good reason. Getting jump-scared by a creeper that silently sneaks up on you before dealing massive damage by exploding is an iconic part of the game.
In Minecraft, Creeper farms are an essential resource for a constant supply of gunpowder, which is used for crafting TNT, fireworks, and some splash potions and is primarily used to fly an Elytra.