GSN Games | 33,018 followers on LinkedIn. GSN Games is a leading provider of cross-platform entertainment, including social casino games and skill-based cash tournaments designed to fuel every player's inner winner. Founded in 1999 as skill games site WorldWinner.com, the company has evolved into a premier social, mobile and online games company. WorldWinner launched its iOS app in 2017 and has prized out more than $1.5 billion to date in online cash tournaments.