Pokemon Peridot

Pokemon Peridot

Download Pokemon Peridot GBC Rom Hack (Pre-Patched)

Pokemon Peridot is a GBC ROM Hack by Sea Tree based on Pokemon Crystal. It is now available to download in English and It was last updated on January 19, 2023.

  • Creator: Sea Tree
  • Version: v1.18
  • Hack of: Crystal
  • Updated: January 19, 2023


Pokemon Peridot is a hack created using the pokecrystal disassembly project from pret. Taking place in a wholly original region, this release features 8 gym leaders and the Pokemon League, along with postgame rematches and a Battle Subway.

This hack also features a selection of previously-unused Pokemon designs from various points in Pokemon Gold & Silver’s development. These Pokemon were given fanmade stats to make up for the lack of finalized ones.


  • A brand-new region to explore
  • Previously unused Pokemon from various points in Gold & Silver’s development
  • Two rivals
  • Gyms can be completed out of order
  • Move Tutors are scattered around the maps
  • Every starter will be available through in-game trades
  • Gyms cannot be exited until the player beats the leader or whites out
  • No physical/special split
  • Dark was changed to be a physical type, and Ghost special
  • Added Fairy-type
  • Some modern moves
  • Movepools and stats updated to reflect modern generations.
  • Trade evolutions changed (max happiness or level-up + item)
  • Reusable TMs
  • Updated PC and Battle UI
  • Mystery Gift NPC that will give the player 3 items per day



  • 2 additional gyms.
  • Original sprites for both player genders. Changed pack graphics as well.
  • New hidden puzzle chambers around the overworld containing puzzles and more.
  • An NPC will now offer to revive fossils when the player reaches a certain point in the game.
  • A Move Reminder was added, taking a Brick Piece per move relearned.
  • Headbutt trees now have a chance to drop items. (Encounter rate has been lessened)
  • Remove link compatibility with official Gen 2 games.
  • Updated some learnsets, including level-up moves, egg moves, and TM/Tutor compatibilities.
  • Some new room decorations.
  • Arbok has received a new front sprite with a unique hood pattern.

Mechanic Changes

  • The Mystery Gift NPC requires saving before the player receives any items. The player can no longer save scum for rare items.
  • Paralysis halves speed, in line with modern generations.
    Adjusted some of the requirements for existing tutors.

Bug Fixes

  • Hyper Beam now properly skips the recharge turn if the user successfully KO’s an opposing Pokemon.
  • The running animation will be properly disabled while inside a building or dungeon.
  • Some miscellaneous text errors.
  • The Dragon Fang and Hard Stone now boost Dragon and Rock moves, respectively, by 30%.
  • Fix inconsistent background music on certain maps.
  • Switches in the Hepatica Gym will now remain active once flipped and now play a sound effect.

Known Issues

  • Currently, the player is not allowed to exit from the NPC Teleport screen. Allowing it provides buggy results.
  • Hint text in one of the Unown chambers is awkward.

Also, check out Pokemon Aurora




  • hyperdriveguy – Backporting 60fps and running shoes to vanilla Crystal
  • coraldev – Unique animation for running shoes &
  • MayoRaptor – Implementation of a held item that activates at 1/4 health & Expanded borders
  • pfero – Evolution while holding an item at level up.
  • Rangi & polishedcrystal – The implementation of custom move tutors.
  • FIQ & darsh for the varying Pursuit animation code.
  • pret – For answering any questions I had as well as the tutorials on pokecrystal’s wiki.
  • Elko – Cecil battle sprite, Fighting & Water badges.
  • Accuracy display from FredriQ, used in Polished Crystal.
  • Move Reminder event adapted from TheFakeMateo’s Red++
  • /rheg/

You can download the Pokemon Peridot GBC ROM from this page and you can download an Emulator for your device from this link to play the game.