Decompilation of Pokémon Emerald
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.github Expansion 1.15.0 2026-02-28 22:13:30 +01:00
asm 27/02/26 Master to upcoming merge (#9384) 2026-02-28 15:58:05 +01:00
constants
data Fix weatherform change when primal weather leaves the field (#9424) 2026-03-06 15:12:08 +00:00
dev_scripts Ease vanilla maps deletions (#9199) 2026-02-24 10:26:33 -08:00
docs Update changelog (#9397) 2026-03-01 10:30:50 -05:00
graphics THERE IS COLOR IN THE SPRITESgit add .! 2026-03-12 21:50:20 +09:00
include small changes to include/config/species_enabled.h 2026-03-15 21:56:55 +09:00
libagbsyscall
migration_scripts createmon uses enum Pokeball instead of Item (#9281) 2026-02-25 21:10:57 +01:00
pokeemerald-tools janky merge of tools due to not understanding branches previously 2026-03-16 18:43:45 +09:00
sound Fix space indentation in .s and .inc files (#9371) 2026-02-27 12:45:00 -08:00
src update to config files for level caps, etc 2026-03-14 21:15:26 +09:00
test Fix AI_CompareDamagingMoves reading incorrect move indexes (#9454) 2026-03-07 09:21:51 +01:00
tools Fix mapjson failing with long map/layout names (#9375) 2026-02-27 21:42:12 +01:00
.all-contributorsrc add luuma as a contributor for code (#9427) 2026-03-05 18:33:35 +01:00
.gitattributes
.gitignore quick update to .gitignore 2026-03-15 13:31:52 +09:00
asmdiff.ps1
asmdiff.sh
audio_rules.mk
build_tools.sh
CHANGELOG.md
charmap.txt Fix region text when looking at map in frlg (#9347) 2026-02-25 15:19:09 +01:00
check_history.sh
config.mk
CONTRIBUTING.md
CREDITS.md add luuma as a contributor for code (#9427) 2026-03-05 18:33:35 +01:00
error.log update to all tools that was done in new-mons branch 2026-03-15 13:30:42 +09:00
FEATURES.md
graphics_file_rules.mk
INSTALL.md
json_data_rules.mk
ld_script_modern.ld Merge remote-tracking branch 'pret/master' into pret-merge 2026-02-26 15:33:26 +01:00
ld_script_test.ld
make_tools.mk
Makefile Update Makefile to remove every rom on clean (#9346) 2026-02-25 07:09:22 +00:00
map_data_rules.mk Ease vanilla maps deletions (#9199) 2026-02-24 10:26:33 -08:00
README.md Expansion 1.15.0 2026-02-28 22:13:30 +01:00
rom.sha1
spritesheet_rules.mk
trainer_rules.mk Make trainerproc-generated files depend on trainerproc (#9414) 2026-03-03 11:37:18 +01:00

About pokeemerald-expansion

Gif that shows debugging functionality that is unique to pokeemerald-expansion such as rerolling Trainer ID, Cheat Start, PC from Debug Menu, Debug PC Fill, Pokémon Sprite Visualizer, Debug Warp to Map, and Battle Debug Menu Gif that shows overworld functionality that is unique to pokeemerald-expansion such as indoor running, BW2 style map popups, overworld followers, DNA Splicers, Gen 1 style fishing, OW Item descriptions, Quick Run from Battle, Use Last Ball, Wild Double Battles, and Catch from EXP Gif that shows off a number of modern Pokémon battle mechanics happening in the pokeemerald-expansion engine: 2 vs 1 battles, modern Pokémon, items, moves, abilities, fully customizable opponents and partners, Trainer Slides, and generational gimmicks

pokeemerald-expansion is a GBA ROM hack base that equips developers with a comprehensive toolkit for creating Pokémon ROM hacks. pokeemerald-expansion is built on top of pret's pokeemerald decompilation project. It is not a playable Pokémon game on its own.

Features

pokeemerald-expansion offers hundreds of features from various core series Pokémon games, along with popular quality-of-life enhancements designed to streamline development and improve the player experience. A full list of those features can be found in FEATURES.md.

Credits

If you use pokeemerald-expansion, please credit RHH (Rom Hacking Hideout). Optionally, include the version number for clarity.

Based off RHH's pokeemerald-expansion 1.15.0 https://github.com/rh-hideout/pokeemerald-expansion/

Please consider crediting all contributors involved in the project!

Choosing pokeemerald or pokeemerald-expansion

  • pokeemerald-expansion supports multiplayer functionality with other games built on pokeemerald-expansion. It is not compatible with official Pokémon games.
  • If compatibility with official games is important, use pokeemerald. Otherwise, we recommend using pokeemerald-expansion.
  • pokeemerald-expansion incorporates regular updates from pokeemerald, including bug fixes and documentation improvements.

Getting Started

Important: Do not use GitHub's "Download Zip" option as it will not include commit history. This is necessary if you want to update or merge other feature branches.

If you're new to git and GitHub, Team Aqua's Asset Repo has a guide to forking and cloning the repository. Then you can follow one of the following guides:

📥 Installing pokeemerald-expansion

🏗️ Building pokeemerald-expansion

🚚 Migrating from pokeemerald

🚀 Updating pokeemerald-expansion

Documentation

For detailed documentation, visit the pokeemerald-expansion documentation page.

Contributions

If you are looking to report a bug, open a pull request, or request a feature, our CONTRIBUTING.md has guides for each.

Community

Our community uses the ROM Hacking Hideout (RHH) Discord server to communicate and organize. Most of our discussions take place there, and we welcome anybody to join us!