The later versions of AiCubo (0.9.x and onward) looked visually more impressive, on account of implementing game engines such as SceneKit and Unity.
However I can't help but miss meddling with low-level OpenGL conundrums...
Any desktop platform
Besides, a 3D game build by a one-man team (me) is never going to look perfect.
So, since I haven't re-written it in Java yet, here's AjCubo v0.0.1. Press M to start using the mouse.
The new Javadoc can be seen here (when finished!).