Eric created levels for Doom (called wads), one of which is said to be a recreation of Columbine High School.
Dylan writes that the people in his life are like Doom monsters, while Eric envisions an ultimate Doom world in which people would survive using “only smarts and military skills”, letting natural selection take its course. Eric and Dylan state that they see similarities between Doom and real life. Drawings of the logo, characters and maps are present throughout Eric and Dylan’s journals and school diaries. It is mentioned several times in their writings. One of Eric and Dylan’s favorite video games.
