RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Desktop/Android/HTML5/iOS Java game development framework

FireBase for godot, new version https://github.com/FrogSquare/GDFirebase

HCCD - HTML+CSS Card Designer

This tool is meant to help generating new universes. It is not meant to be a one click solution

This is an Android app that helps running the Alien Players in Space Empires 4X board game