Pokemon Tourmaline

Pokemon Tourmaline GBA

Download Pre-Patched Pokemon Tourmaline GBA ROM Hack

  • Creator: tdilos
  • Version: 0.1.1
  • Hack of: Emerald
  • Released: June 29, 2024
  • Language: English

Pokemon Tourmaline is a GBA ROM Hack by tdilos based on Pokemon Emerald in English. And it is now available to download. It was released on June 29, 2024.

Also, be sure to check out Pokemon Ice Blue


Pokémon Tourmaline is a loose sequel to Pokémon Emerald. This game is intended to take place in an alternate timeline where the setting and events diverge from the official games. Most notably, some mechanics from later gens are absent, others have been reworked, and several new mechanics have been introduced (see below for more information).


It has been several years since the battle between Groudon and Kyogre wreaked havoc on the Hoenn region. As more information about Pokémon’s origins becomes available, humanity’s understanding of the game grows. A recent surge of discoveries in the nearby Issho region has attracted researchers from all over the world, including May, who is now an assistant Pokémon professor. After receiving a Pokémon from her, the player sets out to investigate reports of new Pokémon species and types from all over the Issho region, as well as other strange phenomena. Meanwhile, a new threat is emerging in Issho, a mysterious crime syndicate that employs extremely powerful Pokémon.


  • Original story, characters, and region
  • Return of many old characters
  • A custom regional Pokédex with 386 Pokémon
  • New regional forms of Pokémon from gens 5-8
  • There is no Mega Evolution, but some Megas have returned as natural evolutions
  • A small number of additional fakemon, including some SpaceWorld designs
  • Updated type chart including Fairy type and a new type, Echo, designed to counter Fairies and Ghosts
  • 4 new status conditions
  • 2 new weather types
  • Over 60 new moves and over 20 new abilities
  • Buffs to some old Pokémon, moves, and abilities
  • Other aspects of the battle system have been updated to gen 8 standards unless otherwise noted
  • A custom set of over 100 TMs and HMs
  • A large number of other moves available through move tutors
  • Return of old features like the day/night cycle, headbutt trees, and daily events
  • Various changes to the UI to create a unique experience
  • Minor QoL features including faster text, Repel prompts, increased bag size, and menu looping

Author Note

I’m looking for volunteers to help with certain aspects of the game, mainly sprites and music. PM me if you’re interested.


Pokemon Tourmaline GBA




pokeemerald – DizzyEgg
pokeemerald-expansion – rh-hideout
Porymap – huderlem
Gen 4 music – CyanSMP64
DNS graphics – ShinyDragonHunter
Bag sorting – ghoulslash
Daily swarm engine – Skeli
Scrolling multichoice menus – DizzyEgg
Adding New Weather – Sonikku A
Add Frostbite status (very helpful for setting up new statuses) – Bassoonian
Playtesting – various anonymous players

Discover more from PokéHarbor

Subscribe now to keep reading and get access to the full archive.

Continue reading