[Forever-Free Friday] PolyCube - 3D Tetris

PolyCube is a block-stacking puzzle game in full 3D, with optional VR support. Move and spin your block pieces in all directions to place them in the puzzle before time is up and the piece drops.

The developer was a full-time web dev who wanted to try out solo game development, but they ended up hating the business management side of things, so they eventually gave up the "hobby" and just set the game to free permanently.