Hi Rudnelson! You can use a purchased module at any level of subscription. The main difference is that the included dynamic lighting features would not work. All of the lights and blocking lines would be there, just invisible, inaccessible, and non-functional. You would need to use manual Fog of War to control player visibility. If you were to later upgrade to plus or pro, these items would "unlock", there would be no need to re-purchase or -re-create the module.
