Vitral SDK (Vitral Software Development Kit) is a java based software architecture for the development of computer graphics applications. Supports solid modeling, offline and JOGL rendering, animation/simulation and human-machine interaction.
The Pixel Art Construction Kit is a tool that allows people to easily build isometric stuff, manipulating their little cubes as Lego(TM) blocks.
The tool is made by a lightweight core and some plugins that provide (hopefully) all the needed functions