Pokémon : Autumn Red

Pokémon Autumn Red is a Fire Red Difficulty Hack Designed to be Nuzlocked. However, the game does not feature a forced level cap! If you're simply looking for a challenge but don't want to nuzlocke, you can play that way! Autumn Red was inspired by Romhacks like Renegade Platinum and Emerald Kaizo, with the difficulty of Autumn Red aiming to be somewhere in the middle. It consists of only Pokémon from the 1st 3 generations, with Legendary and Mythical Pokémon (besides Articuno, Zapdos, and Moltres) unavailable for capture.

All 386 Pokémon will be available for capture will be avaiable in the post-game. The Post-Game is not yet available and has no timetable for development as of now.

Source: TheGamesDB