This was from a game I was developing at TAFE for a semester.
It was a simple raycast based puzzle game where you moved some cubes around to make light hit all the required cubes. Cubes had special traits and the map/layout had barriers and such. We were going to have themed levels and these were the 6 themes but never got to finish before the end of the semester.
Was pretty fun had about 50 lvls I think and had some people play test and speed run levels. Was happy with the idea and fun learning in my 2nd sememster.