(There's no video for Block Out yet. Please contribute to MR and add a video now!)
3D Tetris similar to 3Tris except this is in B&W.
Here is how to play it.
Here is a online browser version.
See also: 3Tris
(178.75 KiB / 183.04 KB)
System 6.x - Mac OS 8 - 8.1 / DiskCopy image, compressed w/ Stuffit
(942.15 KiB / 964.76 KB)
Block Out Manual (for game copy protection)
Mac OS 6.x - Mac OS 9.2.2
Emulating this? It should run fine under: Basilisk II