What is the fine-grained topic of the following text: This Pokémon fangame follows the basic format of official RPGs from the famous franchise, following a young Pokémon trainer as they journey through the fanmade region of Tandor, which is home primarily to original species created by the game's developers; few canon Pokémon make an appearance. Only return the topic.
A Pokémon fanmade RPG game set in Tandor region