I’d like to share two game prototypes I made a few years ago. The first one is based on Tetris:
It was written in C++ with bare-bones OpenGL. Once you press shift, the game enters a “fast mode”, where the down button takes a piece all the way down and if you don’t press it for three seconds, it will drop where it is. This is meant to be a fast-paced version of the original Tetris.
The second game is based on the Osmos mechanic, in a 3D space. If two cells touch each other, the bigger one absorbs the smaller one. The goal is to become the biggest cell by avoiding bigger cells and eating smaller ones. I wrote this in Java with the LWJGL library.