The Milton Bradley Robotix Series R-1500, released in 1985, is part of the iconic Robotix line of motorized modular building sets. These toys were designed to let kids (and curious adults) build robotic creatures, vehicles, and machines using interlocking plastic components and battery-powered motors. Set is in excellent condition but is untested. Appears complete but not certain as no parts list included in box. Box is intact with minor repair. Components are in excellent shape. See photos for condition. - Modular construction system: Includes beams, gears, wheels, and joints that snap together to form custom robots. - Motorized parts: The R-1500 set typically includes a black motor unit that powers movement. - Action figures: Often came with characters like Tauron Oxus, a technician figure that added a narrative element to builds. - Expandable: Compatible with other Robotix sets like R-1000 and R-2000, allowing for larger and more complex creations. - Used, complete sets typically sell for $25–$60 USD, depending on condition and whether the motor works. - New or sealed sets can command $145–$280+ USD, especially if the box is intact and includes all original parts. - The R-1500 is considered moderately rare, especially in complete or sealed condition. - Its nostalgic appeal and compatibility with other Robotix sets make it a favorite among vintage toy collectors and STEM enthusiasts. It’s a brilliant blend of creativity, engineering, and 1980s charm.