Sweet Add-a-line

Sweet Add-a-line, released by D. Gottlieb & Co. in 1973, represents a classic example of early 1970s electro-mechanical pinball design. The machine's name refers to its innovative scoring mechanism where players could build up bonus points through sequential target hits, a feature that would influence future pinball game design.

The gameplay centered around a relatively clean playfield layout typical of the era, featuring drop targets, pop bumpers, and the titular 'Add-a-line' bonus scoring system. This scoring mechanic encouraged strategic play by rewarding players who could complete specific shot sequences, adding an extra layer of skill to what might otherwise have been a straightforward pinball experience.

Produced during the golden age of electro-mechanical pinball machines, Sweet Add-a-line emerged at a time when manufacturers were pushing the boundaries of what was possible with mechanical systems. While not as well-known as some other Gottlieb titles from the period, it represented the company's commitment to innovation within the constraints of electromagnetic technology. The exact production numbers are not well documented, but like many EM games of this era, it likely had a production run of several thousand units.