Ghidra is a software reverse engineering (SRE) framework

A Minecraft mapping tool that creates 3D models of your Minecraft worlds and displays them in a web viewer.

Public repository of source code for the Universal Pokemon Randomizer

MDL (a Z80 assembler optimizer)

Map Editor of Happiness, an open-source Pokemon Gen III map editor written in Java!

(Possibly buggy) application for game making, modding, and datamining, with a general focus around game engines compatible with the RPG Maker series.