Uncharted Road can be accessed when the player is randomly warped from a dungeon when the player changes floors. It can only be accessed when travelling through the dungeons Silent Tundra, Dreamy Island, Moonlit Forest, Rusty Mountain, Jaws of the Abyss, and Smoking Mountain, with a higher chance of being warped with a higher dungeon Mysteriosity rating. The number of floors the player will stay in Uncharted Road is random, and the floor number when the player returns to the original dungeon will be equivalent to how many floors they had been gone for.
Unlike the original dungeons, Pokémon can be recruited inside Uncharted Road. Notably, Uncharted Road allows the player to recruit starter Pokémon which are otherwise only recruitable from DLC dungeons. The Pokémon encountered differs depending on the original dungeon through which Uncharted Road is accessed from.
There are three main types of Uncharted Road dungeons, distinguishable by their appearance and Pokémon encountered: