.NAV File Extension

There are 2 file types use the .NAV file extension:

  1. Id Tech 3 Bot Navigation File
  2. MSN Application Extension File

1. Id Tech 3 Bot Navigation File

Id Tech 3 Bot Navigation File
  • Developer Valve
  • Popularity
    4.3 (10 votes)
  • Category Game Files
  • Format N/A

Navigation mesh used by games developed with the id Tech 3 game engine or a derivative of the id Tech 3 engine such as Valve's Source Engine; saves a mesh of walkable areas within a .BSP map file; allows artificial intelligence (AI) bots to know how to move around the map.

NAV files are automatically generated by the game engine when a user first plays a map with bots. The loading process may take several minutes for large maps. You can manually start the NAV generation process by typing nav_generate in the game console. You can also edit navigation meshes manually by typing nav_generate 1 in the game console while "sv_cheats" is enabled.

NAV files are similar to .AIN files, but AIN files are more commonly used for non-player characters (NPCs) instead of bots.

NOTE: Example games that use NAV files include Quake 3 (id Tech 3 engine), Counter-Strike: Source (Source Engine), and Team Fortress 2 (Source Engine).

Software's name License Platforms
Facepunch Studios Garry's Mod Facepunch Studios Garry's Mod Paid MacWindows
id Software Quake 3 id Software Quake 3 Commercial LinuxMacWindows
Valve Counter-Strike: Source Valve Counter-Strike: Source Paid MacWindows

Updated: November 19, 2019

2. MSN Application Extension File

MSN Application Extension File
  • Developer Microsoft
  • Popularity
    3.0 (4 votes)
  • Category Misc Files
  • Format N/A

Extension used by some MSN (Microsoft Network) software applications; contains components that add new functionality and file support to MSN programs; not meant to be opened manually.

Software's name License Platforms
Used by MSN programs Used by MSN programs Windows

Updated: November 15, 2010

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