How to install bio_acid in CS 1.6?

Download the bio_acid 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_acid right now?

Currently 0 servers are playing bio_acid. The map has been played a total of 239 times across 2 servers.

What type of map is bio_acid?

bio_acid is a Other map for Counter-Strike 1.6.

Other

bio_acid

Servers playing now

Total servers

Times played

239

Last played

Oct 22, 2026

Download from GameBanana Similar maps

Servers playing bio_acid0

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

Daily activity

Daily totals from Jul 16 to Oct 21, 2026

Servers that played bio_acid recently

2 servers ran bio_acid in the last 90 days.

Server	Rounds played	Last seen
EViLZOMB.RU » ORIGINAL BIOHAZARD © 2016-2026	32	Oct 21, 2026
ZMRush.net #1 - [Biohazard]	4	Oct 21, 2026

How to install bio_acid

Download the bio_acid.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_acid

bio_acid is a map for Counter-Strike 1.6. It has been played 239 times across 2 servers. Last played on October 22, 2026.