Quake: Episode 1 - Shareware by id Software + Reference Guide - Tested

Quake was id Software\'s follow-up to the popular DOOM series, and the game that inspired one of the most active gaming communities on the internet. Quake is a true 3D first-person shooter and id quickly provided tools to the community to allow the creation of custom levels and gameplay modifications. Many of the most popular gameplay mods, including Capture the Flag and Team Fortress, came from the Quake community. If you are playing online, you will want to upgrade to the Quake World client which will enhance your gameplay.