Along with the announcement of the two new Pokémon games, another game was also revealed by the Pokémon Company for the Nintendo Switch and is now available as a free download – Pokémon Quest.
Pokémon Quest takes place in Tumblecube Island, a world where everything is cube-shaped. You can explore the island with your Pokémon buddies, establish a base, discover Power Stones, and battle other Pokémons.
Pokemon Quest is a free-to-start action-adventure game with options to purchase DLCs. Check out the source link below for more info.
source: Nintendo