18 Mind-Blowing Facts You Never Knew About DOOM

6. Network Overloads

The rising popularity of Doom was such at the time that it caused a severe drop in productivity in businesses and college campuses around the world.

Employees would use company time to play the multiplayer together, which slowed down and even overloaded the networks. This became such a huge problem that businesses and universities were forced to set guidelines for both when and how long people could play the game, with some even going as far as to block its use all together.

Even the offices of id Software weren’t immune to this problem. John Romero himself spent much of his time locked in his office playing with his baby. According to the book Masters of Doom, which chronicles the rise if id Software, John Carmack was forced to break down the door with an axe to get him to stop playing.