One embodiment of an adjustable aiming aid device for first-person video games, video simulators, and similar video-based human-computer interactions in which the protagonist launches projectiles on targets. The device comprises an attachment unit and a sighting unit. The attachment unit is utilized to attach the device to a monitor, the monitor having a screen on which the software-generated visual environment is displayed. The sighting unit is utilized to position a sight at a predetermined location between the user and the screen, in a plane approximately parallel to the screen. The sight assists the user in aligning one's line of vision with the location on the screen towards which the software-simulated projectiles are launched. The sight is positioned in a different plane of focus than the screen, thus creating a new user experience. Other embodiments are described.