How to install chk_serotonin in CS 1.6?

Download the chk_serotonin 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 chk_serotonin right now?

Currently 1 server is playing chk_serotonin. The map has been played a total of 296 times across 3 servers.

chk_serotonin

Other

Servers Playing Now

Total Servers

296

Times Played

Aug 4, 2026

Last Played

Download from GameBanana Similar Maps

Daily Activity

Servers Playing chk_serotonin 1

Server	Players
KZ-Rush.ru #2 JUMP [Average]	8/24	View

About chk_serotonin

chk_serotonin is a Other map for Counter-Strike 1.6. It has been played 296 times across 3 servers. Currently 1 server is running this map. Last played on August 4, 2026.

Servers that played chk_serotonin recently

10 servers ran chk_serotonin in the last 90 days.

Server	Rounds played	Last seen
Позитивные Зайчики[Kreedz Jump]	2	Aug 4, 2026
KREEDZ KZ EASY · Nostalgia Gamers Argentina	2	Jul 24, 2026
Premium KZ Server (Test Week)	2	Jul 15, 2026
Kreedz North America [Kz-Na] Easy/Medium	1	Aug 4, 2026
CrossFire -> Jump [Easy/Average] [10aa] 21:55	1	Aug 3, 2026
KZ-Rush.ru #2 JUMP [Average]	1	Jul 30, 2026
LIGHT \| JUMP \| KREEDZ \| T.ME/TV_HLDS	1	Jul 21, 2026
KZ-Rush.ru EU Server	1	Jul 20, 2026
[QTR4] Autism 24/7	1	Jul 15, 2026
QTR4 HLTV	1	Jul 15, 2026

How to Install chk_serotonin

Download the chk_serotonin.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.