what is the earliest build ever (that we have)?

MrDeclanMan2 · on14 Oct 2025, 02:43:20

The reason why i'm asking this is mainly because i am very interested in seeing how the game turned from Gold Source to Source 1. Not like, the earliest build EVER, no, that crap is most likely never going to see the light of day. More or so like, the laggy physics shown that one time in the e3 2002 demo.. and stuff like that.

SkelettNinja8000 · **Reply #1:** on14 Oct 2025, 07:04:31

the earliest we have is the leaked build...

trafizza · **Reply #2:** on14 Oct 2025, 13:19:02

Yeah.. The one that was leaked, perhaps

PrisenShift · **Reply #3:** on14 Oct 2025, 22:47:47

https://developer.valvesoftware.com/wiki/Source/Engine_versions

Mr Pibb15 · **Reply #4:** on18 Nov 2025, 02:11:28

the only build I can think of is the 2000 build which they were still working on stuff which I also thing they were changing some stuff after there original idea would be the air was toxic though I could be wrong.

still that's the build i think its the most earliest that we probably have. (maybe)

Theuaredead · **Reply #5:** on18 Nov 2025, 16:13:37

Quote from: Mr Pibb15 on 18 Nov 2025, 02:11:28

the only build I can think of is the 2000 build which they were still working on stuff which I also thing they were changing some stuff after there original idea would be the air was toxic though I could be wrong.

still that's the build i think its the most earliest that we probably have. (maybe)

We don't have the 2000 build, nor do we know if Valve has it. Footage during 20th anniversary was from old videos.

The oldest build Valve has documented having is the 2002 build they showcased during the 20th anniversary. But the oldest build WE have is still the 2003 leak.

Quote from: MrDeclanMan2 on 14 Oct 2025, 02:43:20

More or so like, the laggy physics shown that one time in the e3 2002 demo.. and stuff like that.

Pretty sure the "laggy physics" is just a byproduct of demo playback and not a showcase of how physics were in the build.

vortalflux · **Reply #6:** on18 Nov 2025, 18:04:17

Mr Pibb15 · **Reply #7:** on22 Nov 2025, 04:18:23

the 2003 build is cool

vortalflux · **Reply #8:** on22 Nov 2025, 14:16:32

Quote from: Mr Pibb15 on 22 Nov 2025, 04:18:23

the 2003 build is cool

yeah it is indeed

vortalflux · **Reply #9:** on23 Nov 2025, 04:05:42

vortalflux · **Reply #10:** on23 Nov 2025, 04:05:48

03 i wish we got earlier builds than that though

duncan · **Reply #11:** on15 Dec 2025, 17:12:31

Quote from: MrDeclanMan2 on 14 Oct 2025, 02:43:20

The reason why i'm asking this is mainly because i am very interested in seeing how the game turned from Gold Source to Source 1. Not like, the earliest build EVER, no, that crap is most likely never going to see the light of day. More or so like, the laggy physics shown that one time in the e3 2002 demo.. and stuff like that.

aside from some leaks that we got from either valve themselves or other people, the only build that WE have that is accessible is the leaked 2003 beta, all older ones like 2000, 2001, and 2002, are just modified versions of the leaked 2003 beta as there has not been a build given to the public that is older then 2003.

Glados2407 · **Reply #12:** on15 Dec 2025, 18:26:14

2000 year.

JS101 · **Reply #13:** on15 Dec 2025, 22:22:51

for GoldSrc we have 315 (built on the 4th of September 1997, used by Half-Life Alpha 0.52)
for Source we have -7 (built on the 23rd of September 2003, used by Half-Life: Source and Counter-Strike: Source's leaked betas)

Glados2407 · **Reply #14:** on15 Dec 2025, 22:41:52

gs - build hl alpha 1996 - 1997, source - hl2 2000 - 2001.