How to install extension in CS 1.6?

Download the extension map file (.bsp), place it in your Counter-Strike 1.6 "cstrike/maps" folder (usually at C:\Program Files\Steam\steamapps\common\Half-Life\cstrike\maps), and restart the game. The map will appear in the map selection menu or you can join a server running it.

How many servers are playing extension right now?

Currently 0 servers are playing extension. The map has been played a total of 15 times across 1 servers.

What type of map is extension?

extension is a Other map for Counter-Strike 1.6.

Other

extension

Servers playing now

Total servers

Times played

Last played

Dec 31, 2025

Download from GameBanana Similar maps

Servers playing extension0

No server is playing extension right now. Browse the server list

How to install extension

Download the extension.bsp map file from GameBanana or another trusted source.
Locate your Counter-Strike 1.6 installation folder. The default path is: C:\Program Files\Steam\steamapps\common\Half-Life\cstrike\maps\
Copy the .bsp file into the maps folder. If the download includes .wad or .res files, place them in the cstrike folder.
Restart Counter-Strike 1.6. The map will appear in the map list, or you can connect to any server running it from the server list.

About extension

extension is a map for Counter-Strike 1.6. It has been played 15 times across 1 servers. Last played on December 31, 2025.