Level editor

A level editor (also map editor and map maker) is a software application used to design levels, missions, "backgrounds" or "maps" for a videogame. Videogame developers often create new (or customize existing) level editing software; however, some utilize an existing 2D/3D graphics package.

An individual involved with the creation of game levels can be referred to as a level editor but a more appropriate job-title is level designer.