What is .BMZ file extension?
.BMZ file extension is a known file type. This section tells you everything you need to know about this extension.
Game map created for Portal, a first-person 3D puzzle-solving game; stores a bonus map, which can be created by third-party community developers; stores a .ZIP archive of .BSP (map), .TGA (logo), and .BNS (script) files.
Portal bonus maps can be installed by opening Portal, selecting "Bonus Maps," clicking "Import Bonus Maps...," and then choosing the BMZ file.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.