Gaming Vernacular
Interesting little chart.
When Doom was released in 1993 it became so popular that it spawned a whole genre of video games. People called these video games "Doom clones", which was eventually replaced by the more generic term "first person shooter" that we use today.
That's not to do Doom a discredit. Behold:
Doom was released as shareware, with people encouraged to distribute it further. They did so: in 1995, Doom was estimated to have been installed on more than 10 million computers.
10 million installs. This is back when there was no file sharing networks. If you wanted to share a game with someone, you gave them a bunch of 3.5-inch pieces of plastic in a box. There will only be so many games like this in my lifetime, I think. Games that become so popular that they define genres, are ported across countless formats (sometimes commercially, sometimes just for teh lulz) and end up on my mobile device as a wireless download 16 years later. Doom for iPhone is good times.

