1. A system configured to manage a theme of a virtual space, the system comprising: one or more hardware processors configured by machine-readable instructions to: implement the virtual space to determine views of the virtual space; detect physical tokens based on signals received from one or more token readers, the physical tokens including a first token associated with a first character and a second token associated with a second character, the first character being associated with a first theme and the second character being associated with a second theme, the first token being detectable based on a first signal conveying information associated with the first token, the second token being detectable based on a second signal conveying information associated with the second token, the first character being accessible in the virtual space responsive to the first token being detected and the second character being accessible in the virtual space responsive to the second token being detected; and manage a theme of the virtual space, the theme of the virtual space being a unifying subject within the virtual space, the theme of the virtual space being modified based on the first theme responsive to the first token being detected, the theme of the virtual space being modified based on the second theme responsive to the second token being detected.