The input/output system makes entity work easier but to make a decent source map requires a lot more detail, which means more time, effort etc. Yep, I'm just lazy
. Anyway, to cut a long story short I can't get my (legitimate) copy of HL1 to register with steam, but I've installed Hammer 3.4 etc. so I can map. But will my maps be useable for people using HL1 with steam?