Half-life cd key, what is it?

  Grambo 16:16 01 Mar 2003
Locked

I know its on the back of case, but ive tried all the serial numbers and none seem to work. Anyone know what sequence of numbers i should be using

  powerless 16:24 01 Mar 2003

If the numbers have "-" in then include the "-"

1223-4567-7910-1122

Not 123456789101122

  Taurus 16:29 01 Mar 2003

Not sure, but try 0702-03103-6405

  Taurus 16:54 01 Mar 2003

ßThat's the same format as I have posted above. Of course, the numbers I have put are for my copy and will probably not work for yours.
My copy came in a DVD type box and the code is on the bottom left hand side of the instruction booklet insert.

It's a cracking game by the way

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