Hello, I use to play back in the day ESF 1.0 for HL1, after awhile kinda thought the mod was dead, although a friend told me this is far from truth. Now I know the original ESF for was HL1 but those videos on the ESF main front, is that really HL1 ? or is ESF making a Store bought version ? I been searching the forums for a answer and couldn't find one so posted this, any info would be cool, thanks.