This is what you should have got with any retail HL CD key: https://steamdb.info/sub/1/apps/ https://steamdb.info/sub/1/apps/ I can confirm it worked with HL1

This is what you should have got with any retail HL CD key: https://steamdb.info/sub/1/apps/ https://steamdb.info/sub/1/apps/ I can confirm it worked with HL1, CS Retail and Blue Shift keys.