Doom's single-player campaign lasts 13 hours or more, according to developer Id Software.

Responding to a fan on Twitter, the studio's official Doom account said that Id staff "average 13+ hours in the campaign."

Though gamers' mileage will likely vary, a campaign that lengthy is a change from the brief or non-existent campaigns in today's prominent shooters.

The game also offers several multiplayer modes, and a map editor with which users can create theoretically infinite multi- and single-player content.

Doom launches May 13th on new-gen consoles and PC.