Quake shook up the shooter market 20 years ago

One of the most important games in shooter history is celebrating a big birthday.

Quake came out for DOS PCs on June 22, 1996, making the historic first-person shooter 20 years old. Quake came from Id Software, the company that pretty much invented the first-person shooter. Before Quake, Id worked on the Wolfenstein and Doom series, but Quake stood out because of its use of 3D graphics, which were revolutionary at the time. The franchise also helped kickstart competive gaming and conventions — QuakeCon also started 20 years ago. The series has spawned five games, with a sixth, the multiplayer-focused Quake Champions, announced earlier this month at the Electronic Entertainment Expo.