"HL1-ports" are ports of Valve's GoldSrc games on the leak Source engine that were stolen with the rest of Valve's then-current content back in 2003. With this archive you will be able to play the ports of Half-Life 1 and CS 1.6 on Source.

With this archive you will be able to play the ports of Half-Life 1 and CS 1.6 on the Source engine.

You also can find the remnants of an old and obsolete version of Team Fortress 2 inside the archive.