What's so special about Doom to cause this trend? I get that it's a great game and a classic, but that alone doesn't seem enough to me to get people hack it into all sorts of devices.

Edit: I should add that this thread[1] is what prompted my question

0. https://youtu.be/xZaKlLyikKg

1. https://news.ycombinator.com/item?id=35306599