1. An online gaming system for dynamically adjusting game content in an online game, the system comprising: one or more biometric scanning components configured to obtain biometric characteristic information; and one or more processors configured by machine-readable instructions to: execute an instance of an online game, and to use the instance to generate state information that is transmitted over a network to client computing platforms associated with users, wherein the transmission of the state information over the network facilitations presentation of views of the online game to the users and to implement the instance of the online game to facilitate participation of the users in the online game via the client computing platforms, the users including a first user participating in the online game via a first client computing platform; obtain biometric characteristic information from the one or more biometrics scanning components, and/or the user client computing platforms integrated to the one or more biometrics scanning components and/or able to communicate with the one or more biometrics scanning components, such biometric characteristic information including first biometric characteristic information for the first user obtained from the first client computing platform; determine, from the biometric characteristic information obtained, mood profiles for the users such that, responsive to obtaining the first biometric characteristic information, a first mood profile is determined for the first user; identify game content of the online game to be presented to the users based on the user mood profiles, such identifications including identifying a first set of game content based on the first mood profile for the first user, wherein the game content includes virtual items which are made available for use in the online game, such that the first set of game content comprises one or more virtual items usable by the first user in the online game; and effectuate presentation of the identified game content of the online game for the appropriate users of the online game, wherein effectuating presentation of the identified game content for the appropriate users includes effectuating presentation of in-game incentive offers for the users of the online game to make purchases of the virtual items included in the identified game content, such that the first set of game content comprises an in-game incentive offer for the first user of the online game to make a purchase of the one or more virtual items included in the first set of game content.