To play the Black Mesa, you must have bought the Half Life 1 or 2 on steam?

Black Mesa Archive Help!
#1

To play the Black Mesa, you must have bought the Half Life 1 or 2 on steam?
I want so much to play, but i have only counter-strike pack with CS:GO on my steam account… :[

#2

You don’t need to buy HL1/2 to play Black Mesa. All you need is Source SDK Base 2007.

#3

Ok. Thank you so much!
I’m downloading Source SDK Base 2007! :smiley:

#4

Make sure to read the Installation Manual if you have any questions on the install.

#5

Case and thread closed. :slight_smile:

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.