PC Gamer (0.81) sits at the top of id Software's similarity graph — a print and digital games magazine, not another game developer — and it edges out Steam (0.80) by the narrowest margin. That two-peak structure, with a media outlet and a distribution platform as the twin anchors, frames the rest of the top 10.
The shape is two-peak: PC Gamer and Steam form distinct poles, and the neighbors below them sort into the same two clusters — gaming media and gaming infrastructure. Ask PlayStation (0.78) and Xbox Support (0.75) represent platform-side infrastructure; DICE (0.78) and Niantic, Inc. (0.76) are the only other Game Developers in the top 10, alongside id Software itself. Destiny 2 (0.78) and SMITE (0.75) are Video Game Franchises. SteelSeries (0.78) is Technology, and Discord (0.76) is Social Media. Taken together, the top 10 is almost entirely gaming ecosystem — media, platforms, hardware, and titles — with no crossover into entertainment or lifestyle categories that appear further out in the broader graph.
The two-peak structure suggests id Software's audience is simultaneously shaped by PC-centric gaming media consumption and by platform and distribution habits, rather than by loyalty to any single franchise or developer peer.