exinvaders
Classic Space Invaders, built entirely from glowing voxels. The play field is the familiar 2D one, seen side-on, but every invader, your cannon and the shields are 3D boxes. Hits shatter them into tumbling physics debris while additive flashes bloom where they land.
Download v1.3
Unzip anywhere and run exinvaders. On Linux you need SDL2 installed.
Controls
Left / Right move · Space fire · Enter start or restart · Esc quit. Add --autoplay to watch a bot play.
exinvaders is one of the example programs in the open-source simlib library.