Half-Life Alpha 0.52 ported to Source
By CnicKTheCrocodile
https://www.moddb.com/downloads/half-...
Work only on the steam_legacy version of Half-Life 2 for now.
I'm playing with god mod because all the func_door easily do a lot of damage, just like in the original alpha.
It is impressive that he was able to port all of this into Source.