Abstract: A gamer engagement platform within games and social networks to engage gamers in novel ways during the game play and during interstitial periods between game level transitions to promote loyalty to games while exposing them gracefully the rewards and advertisements of brands and location based service providers with whom they are likely to have high affinity on just-in-time and just-in-location basis, whether the games are being played online or offline. Gamer can invite friends in platform and social networks for social game challenge across heterogeneous games. Brands, location based service providers, and game developers can conduct and track campaigns using the optimized points conversion engine and offer recommendation engine of the platform. Software code embedded in the games conducts campaigns during game play and interstitial times during game level transitions to convert game points earned into platform points that can be exchanged by gamer to redeem rewards in-game or later.