Robert Phillip Manz, the man behind some of the most influential slot games in history, has died at the age of 65.

Manz suffered a medical emergency while driving on Saturday and lost control of his vehicle, the Las Vegas Sun reports.

Manz had a long career in gaming and was responsible for developing Blazing 7s and the Black and White slot series. He was a pioneer in the design of video lottery terminals and, having spent more than 20 years with the predecessor companies of Bally Technologies, he later served as president of Las Vegas-based Rocket Gaming Systems.

In 2006 he stepped down from this role but continued to design games for the company.

He is survived by his brother and sister.