Pokémon Quartz

Pokémon Quartz is a Pokémon Ruby-based ROM hack created by Baro Boar. In it, the player takes the role of a young Trainer, who, along with Professor Baro, has just moved to the Corna Region from Kanto.

Though not all Fakemon are obtainable in Pokémon Quartz, the game is able to communicate and trade with Pokémon Marble, which contains the Fakemon missing from Pokémon Quartz; this allows players of both games to complete the Pokédex.

Fakemon List
In Pokémon Quartz, all 377 Pokémon in the National Dex have been replaced with new Fakemon.

They are listed here: