The Quake shareware CD-ROM contained encrypted copies of every id Software game—and yes, it was cracked 39 days after release I blame those pesky kids. You had to put a spinning disc in the front of your PC to install the games you physically bought and paid for. The game itself took up a mere 22 MB of a CD-ROM's 640 MB capacity, leading John Carmack to joke that if there was ever a CD version of Doom, it would come with a "Making of Doom" feature film to use up the entire capacity. While gamers could pick up the shareware release of Quake for around $10 from retail stores, those in the know could use it to gain access to not just the full version of Quake, but a whole heap of other games for no extra cost.
Источник
PC Gamer