Who is the founder of playfirst? PlayFirst, Inc. is a San Francisco located casual games developer and publisher, founded in 2004 by John Welch, Brad Edelman and Jason Rubinstein. They are most known for the Diner Dash line of games. Diner Dash 5: BOOM!Where can i buy playfirst games? PlayFirst games are available in major retailers and on more than 500 sites in 20 languages. In 2014, PlayFirst was acquitted by Glu Mobile Inc. (GLUU), a leading global developer and publisher of free-to-play games for smartphone and tablet devices.How do i schedule a call with carefirst customer service? Schedule a time to have a CareFirst representative reach out to you — at your convenience. Log into My Account and schedule a call back today. Please call 711 to place a call to Customer Service or Consumer Direct Sales. We have translators available who speak 75 different languages, including Spanish, Mandarin, Korean and Cantonese.