what is it?

Just a simple classic Tetris clone, built in Common lisp using OpenGL bindings. So, you can rotate and drop pieces, see the next piece, clear lines (the usual stuff).

I might try and add to it at a later data, i.e., a UI, more mechanics (maybe mechanics from some variant of modern Tetris, or add in new ones), improve the scoring system, and make the movement a bit smoother.

This was more of a project to get familiar with OpenGL development in Common Lisp.

I'm also just a big Tetris/puzzle game fan.