Pokémon: Battle Factory

Pokémon: Battle Factory, originating in 2014, is a fan-made modification built upon the core RPG mechanics of Pokémon Red Version. The gameplay centers on a challenging, gauntlet-style battle system within the Kanto region, emphasizing strategic team construction against a series of trainer encounters. Its distinctive feature is a factory-like structure that demands constant adaptation to rotating rulesets or rosters, focusing purely on competitive battling mastery.