1. An online gaming system allowing for customizable interaction, the system comprising: one or more processors configured by machine-readable instructions to: execute an instance of an online game, and to implement the instance of the online game to facilitate participation of users in the online game, and to implement at least one game difficulty customization determined for individual users such that a first game difficulty customization is implemented in the instance of the online game for a first user; obtain a user resource parameter characterizing one or more resources available to the first user to access the online game; and determine the first game difficulty customization of the online game for the first user based on the user resource parameter associated with the first user.