BIG QUESTION

[light123]

CAN I INSTALL ESF ON COUNTER STRIKE CONDITION ZERO

 

[Grega]

I have a Condition-Zero CD-Key, will ESF work?
A Condition-Zero CD-Key will not work. You need to get a valid copy of Half-Life, Counter-Strike, or Day of Defeat.

Counter strike in there means the retail version that comes with halflife included.

So as you can see CZ does not work If you want to play this mod you should buy HL1 (not source) than you can be 100% shure it will work.

Also caps is anoying ^^