Ghidra is a software reverse engineering (SRE) framework

OpenRefine is a free, open source power tool for working with messy data and improving it

Delver game engine and editor

Useful tools for roguelike, role-playing, strategy, and other grid-based games in Java. Feedback is welcome!

Legend of Dragoon decompiled, reverse engineered, and ported to Java

Java LibGDX Android 2D RPG Game

Awesome list about everything related to J2ME, a Java specification for old keypad phones and PDAs.

Several loosely-connected libraries for procedural generation and roguelikes. Parent repo.

A turn based strategy rpg - Java (libgdx)

A 2d sprite and animation studio for game developers