half life 1 is imparative to have ?

[hi0h]

if i want to play i have to have hl 1 and half life 2 will not cut it ?

[Knights]

If you have hl1 it'll cut it... ::zombie:: Just download the mod and enjoy...

[DarkShadow]

Well, the question was if half life 2 will work instead of half life 1...

[ANeM]

You can not play Half-life mods with Half-life 2.
You can not play Half-life 2 mods with Half-life.

To play the current Half-life itteration of ZP, you will need half-life
To play the next itteration of ZP, which will be for half-life 2, you will need half-life 2.