Dungeon spawn depends on the type of seed that is used and if the parameters are met or not. Your floors and ceiling must be solid and the wall should have at least 1 opening to have the dungeons spawn. Dungeons are made of cobble stone and mossy cobblestone. In the small structure there is mossy cobblestone which makes loud noises. As a result, these loud noises can lead to dungeons. Make sure you pay attention to them!
Dungeons in Minecraft are a great way to loot treasure from chests, get mob spawner and mossy cobblestone. These can be used for many purposes in the games. Dungeons have been around for a long time in Minecraft and still have the same popularity. There are different online dungeon finders which can provide you the location if you add the seed of your world in the website. Check out Chunkbase’s dungeon finder!