For over a decade, the holy grail of Pokémon ROM hacking has worn two names: Sacred Gold and Storm Silver . Created by the legendary Drayano (with later updates by the community), these hacks of Pokémon HeartGold and SoulSilver are not mere difficulty bumps. They are comprehensive redesigns that transform Johto and Kanto into a hardcore trainer’s paradise.
Playing SG/SS feels strangely modern because Drayano patched in features that Game Freak wouldn't add until Sun and Moon or Sword and Shield : pokemon sacred gold storm silver documentation