Having problems opening a bsp file?

Find out what programs can help open, view, play or convert your bsp files.

Opening bsp files
Quake Engine Game Map File

Did your computer fail to open a bsp file? We explain what bsp files are and recommend software that we know can open or convert your bsp files.

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What is bsp file?

Map file used by games developed with one of the Quake game engines; contains the layout information, objects, and resources for a level map; used by many games, including Quake, Quake 2, Quake 3, Half-Life, Half-Life 2, Team Fortress, Counter-Strike, Counter-Strike: Condition-Zero, Portal, and Call of Duty: World at War. BSP stands for "Binary Space Partitioning," which is a technique that breaks up intricate polygons into convex sets. This allows 3D maps to be rendered more quickly. BSP files are made up of "lumps," which are chunks of data that are defined in the file header. These include Entities, Nodes, Vertices, Planes, Leaves, Visibility, Faces, and Textures. Since BSP files are compiled from map editor projects, they typically are not modified directly. However, BSP files can be compiled from .MAP files using tools such as Q3Map2 and Irrlicht. They may also be created using id Software programs such as GtkRadiant, ZeroRadiant, and DarkRadiant. Some BSP map decompilers exist such as Q3Map2, EntSpy, Vmex, and BSP2MAP. However, they typically do not decompile BSP files correctly. NOTE: Quake engines that use BSP files include id Tech 1 (Doom Engine), Quake Engine (the original Quake engine), id Tech 2 (Quake II Engine), id Tech 3 (used originally for Quake III Arena), and id Tech 4 (originally used for Doom 3).

Software that will open, convert or fix bsp files

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