BSP is an abbreviation of Binary Space Partitioning. A BSP file is a map file that uses the Quake engine.
Many games have borrowed for the Quake engine, including the massively popular Half-life and Portal games.
.bsp File
Extension
Developer:
id Software
File category:
What are bsp files & how to open them - Quake 2 Map File
File category:
Developer:
id Software