Quake is a first-person shooter video game that was released by id Software. It was the first game in the popular Quake series of video games. It was released on June 22, 1996.
In single player, players explore and navigate to the exit of each level, facing many challenging monsters and a few secret areas along the way. Usually there are buttons to press or keys to collect in order to open doors before the exit can be reached. Once reaching the exit, the game takes the player to the next level.
Before the start level, there is a set of three pathways with easy, medium, and hard skill levels; in order to reach the Nightmare skill level (described in the game manual as "so bad that it was hidden, so people won't wander in by accident"), the player must drop through the water before the Episode 4 entrance and jump into a secret passage.