>>11933607
>Be me in high-school
>go to goodwill some time in the late 2000s
>see original Half Life CD
>Sweet I've never played this before but heard great things about it
>Buy it
>install
>Asks for copy protection
>oh this should be fine it's a game from the 90s it'll surely let me use the same code on a different machine just like my copies of Adobe CS3.
>Type in code
>SORRY YOUR CODE HAS ALREADY BEEN REGISTERED
>end up not playing half life until Valve released it for free for the 25th anniversary.