set in a parallel Hoenn region. There is also a Nintendo DS version which is a hack of Pokémon Platinum

Pokémon Parallel Platinum is a of the original Pokémon Platinum for the Nintendo DS. Created by veteran hacker X-Cute , this fan-made modification aims to overhaul the Sinnoh experience by introducing:

Delta Emulator (now available on the App Store in many regions). Important Tips Before You Start

DeSmuME or MelonDS (highly recommended for performance).

Search for the project on established forums like PokeCommunity or Relic Castle . These sites have moderation teams that vet links for safety.