Abstract: In one aspect, an outdoor game system is provided, comprising a plurality of upright towers that are operatively connected and suitable for installation outdoors, each tower including a plurality of contact assemblies, each contact assembly including an interface capable of responding to or detecting contact, a light source that emits light proximate the interface, and a sound source that emits sounds proximate the interface, wherein the contact assemblies operate in random or predetermined sequences that constitute game functions. In another aspect, an outdoor game system is provided, comprising four towers, each tower including four interfaces, each interface detecting or responding to contact, at least one light source, and at least one sound source, wherein the interfaces define a four-by-four grid, and the four-by-four grid is entirely visible from a single location within a field of play.