How to install zm_four_cso in CS 1.6?

Download the zm_four_cso 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 zm_four_cso right now?

Currently 2 servers are playing zm_four_cso. The map has been played a total of 132 times across 2 servers.

Zombie zm_

zm_four_cso

Servers playing now

Total servers

Times played

132

Last played

Oct 14, 2026

Download from GameBanana Similar maps

Servers playing zm_four_cso2

Server	Players
[ZOMBIES]+[CSO MOD] [#1] CSOMOD.COM [since 2012] 135.125.249.130:27015	18/32
[ZOMBIES]+[CSO MOD] [#1] CSOMOD.COM [since 2012] 81.181.244.5:27015	18/32

Daily activity

Daily totals from Jul 15 to Oct 3, 2026

Servers that played zm_four_cso recently

3 servers ran zm_four_cso in the last 90 days.

Server	Rounds played	Last seen
[ZOMBIES]+[CSO MOD] [#1] CSOMOD.COM [since 2012]	4	Oct 3, 2026
[ZOMBIES]+[CSO MOD] [#1] CSOMOD.COM [since 2012]	4	Oct 3, 2026
RespawnArena.LeagueCS	3	Jul 29, 2026

How to install zm_four_cso

Download the zm_four_cso.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 zm_four_cso

zm_four_cso is a Zombie map for Counter-Strike 1.6. It has been played 132 times across 2 servers. Currently 2 servers are running this map. Last played on October 14, 2026.

Zombie Mod (zm_) maps are designed for the popular Zombie Plague modification. One team plays as zombies trying to infect humans, while humans must survive using weapons and barricades. These maps feature strategic defensive positions and escape routes.

zm_four_cso

Servers playing zm_four_cso2

Daily activity

Servers that played zm_four_cso recently

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