With 30 years under its belt, we've reached the point where every region of Pokémon is fleshed out in some capacity. There are official and fan-made prequels and sequels, and a few official games have even returned to past regions, whether in remake or spinoff form. Just like Pokémon Legends: Z-A, which brings folks back to Lumiose City and the Kalos region.
Over on Poké Community, you can partake in a Hoenn prequel right now. It showcases the region in a fascinating way, bringing to light some of the deeper lore between Rayquaza. Groudon. and Kyogre
Crafted as a prequel to the events that happen in Gen 3, Pokémon Hoenn's Last Wish takes place in a starkly different version of the region, in which Rayquaza was not able to best Groudon and Kyogre.
If you're curious if the story is up to par, here's a quick rundown: "A parallel universe where Rayquaza failed to stop Groudon and Kyogre, which caused a natural collapse in Hoenn... After long years of natural destruction, the entire Hoenn region was practically devastated, the era of trainers / Poké Balls ended, the Pokémon became wild animals, and the nomadic people trying to survive......
