Tool: [PMD2] SkyTemple ROM Editor (Maps, Scripts, Debugger, ...)

​Project website: https://skytemple.org

Hi!

A year ago I wondered if there are any tools to make custom PMD2 ROM Hacks. I found out that much work on the games had been done, but there wasn't really any user friendly GUI editor to make custom ROM hacks. So I decided, I'd give it a shot and try to make my own.

This tool can edit both the ROMs of Pokémon Mystery Dungeon Explorers of Sky EU / NA.



Now, before I begin, I want to stress that NONE of this would have been even remotely possible without people like psy_commando, End45, Nerketur, evandixon, MegaMinerd or any of the other PMD ROM hackers. I'm not somebody who's good at reverse engineering ROMs or actually finding out how stuff works. They did all the hard work (especially Psy!) and they deserve all the credit for it! All I did was filling some gaps and building this editor, that I'll now present to you...:

Features

Map Background Editor



Let's you view and edit the backgrounds of the map. Supports importing map backgrounds from image files. The collision of the map can also be changed.

Scene Editor



Let's you edit the position of Pokémon and Objects on the overworld maps and change how cutscenes are built.

Script Editor / Debugger



Let's you edit the script files of the game and debug them in realtime.

> Script Editing

You can edit all scripts in the game with features like auto-completion and calltips.

> Debugging

You can set breakpoints and let the game halt at different parts of the code.

> Debug Overlay

A debug overlay shows you where objects, triggers and Pokémon are rendered and what their hitboxes are

> Game State

View the current state of the Ground Engine, the game's script engine: What scripts and scenes are currently loaded and which actors and objects are placed on the map?

> Variables

View and modify the current game variables in real time.

> ExplorerScript

ExplorerScript is a new high level language that the scripts in SkyTemple are written in. It is compiled to the binary code (SSB) that the game uses.

Dungeon Editor



Edit and create your own dungeons and customize the spawns for each floor.

Dungeon Tileset Editor



Edit the graphics of dungeon tilesets.

Fixed Room / Boss Fight Editor



Edit treasure rooms and boss fights, create entirely new bosses and assign them to dungeons however you like.

Ground Lists



Change various lists in the game, such as the starters, the recruitment list, a list of placable NPCs (actors) or the world map.

Pokémon Data



Edit the data of Pokémon, including stats, move learnsets and portraits.

More Features

- Apply ASM patches to add new functionality to the game
- Edit misc. graphics, such as the fonts or the message borders
- Edit all text in the game

Source Code

Can be found on GitHub: https://github.com/skytemple

Downloads (Linux, Mac, Windows)

Can be found here.

A new version was released! It contains dungeon editing, tileset editing, starter editing and so much more!
See the updated main post for more details and a trailer!

Not sure why this didn't get much attention! Seems great work to me! Keep it up!

Wow amazing work!!!
I might get into making a small Mystery Dungeon ROM-Hack at some point and make some cutscenes with this tool.