An exercise system includes at least two exercise modules and is arranged to allow multiple users performing exercises on, with or against the modules in different locations while performing at least one preset task defined in a context of a story, a scenery or a video (or computer) game each in turn preferably defined in a virtual environment. The exercise system generally generates the task of the story, scenery or game in images of the virtual environment and simulates the exercising users as simulated user in such images, while allowing the users to manipulate the simulated users for attaining a goal of the task based on features related with the exercises performed by the user or allowing the task to manipulate operations of the modules based on the features. The execs system includes at least two output modules each including a visual unit to provide the images for the task to each user and an olfactory or tactile unit to provide smell or tactile sensation to the user, respectively.