Play Meter is an American trade magazine focusing on the coin-op and arcade game industry. It was founded in December 1974 by publisher and editor Ralph C. Lally II and it is published in physical form by Skybird Publishing on a monthly basis. Play Meter has published several bi-monthly and annual special issues throughout its history and it maintains a website where online content is also published monthly. The magazine is generally regarded as the premier trade magazine of the American video game industry and as the earliest example of video game journalism, establishing such practices as individual video game reviews and the ten-point assessment scale for video game reviews.