Provided is a presentation effect device capable of providing a new presentation effect in which it is possible to change the state where a player can visibly recognize an object to be visibly recognized to the state where a player can visibly recognize the object without any movable member. A presentation effect device is provided with a plate-like panel, an accommodation space partitioned by the plate-like panel, the accommodation space for accommodating an object to be visibly recognized, and an illumination device for illuminating the object to be visibly recognized by a signal from the outside, wherein the plate-like panel is composed of a beam splitter for dividing incoming light into reflection light and transmitted light.