I've been working on a game recently, and while currently not a game (I'm not really sure what to do to actually add gameplay yet), I've got a cool graphical effect going on.
You can download it HERE, only ~300 kb (most of which is the glfw which I statically linked to).
I've attached a screenshot, but you need to actually try it out to give it justice.
Any comments, criticisms, or ideas to turn it into an actual game are welcome.
It's written in C++ using OpenGL, along with GLFW for window creation and the like, and seems to run fine on older computers/cards.