How to install bio_4map_collab_a4 in CS 1.6?

Download the bio_4map_collab_a4 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 bio_4map_collab_a4 right now?

Currently 0 servers are playing bio_4map_collab_a4. The map has been played a total of 209 times across 1 servers.

What type of map is bio_4map_collab_a4?

bio_4map_collab_a4 is a Other map for Counter-Strike 1.6.

Other

bio_4map_collab_a4

Servers playing now

Total servers

Times played

209

Last played

Oct 24, 2026

Download from GameBanana Similar maps

Servers playing bio_4map_collab_a40

No server is playing bio_4map_collab_a4 right now. Browse the server list

Daily activity

Daily totals from Jul 11 to Oct 23, 2026

Servers that played bio_4map_collab_a4 recently

1 server ran bio_4map_collab_a4 in the last 90 days.

Server	Rounds played	Last seen
Мертвая земля •[Zombie]•	52	Oct 23, 2026

How to install bio_4map_collab_a4

Download the bio_4map_collab_a4.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 bio_4map_collab_a4

bio_4map_collab_a4 is a map for Counter-Strike 1.6. It has been played 209 times across 1 servers. Last played on October 24, 2026.