OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
Unity - The multiplatform game creation tools for everyone.
jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Spring Framework - The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.