Technologies for depth-based gesture control include a computing device having a display and a depth sensor. The computing device is configured to recognize an input gesture performed by a user, determine a depth relative to the display of the input gesture based on data from the depth sensor, assign a depth plane to the input gesture as a function of the depth, and execute a user interface command based on the input gesture and the assigned depth plane. The user interface command may control a virtual object selected by depth plane, including a player character in a game. The computing device may recognize primary and secondary virtual touch planes and execute a secondary user interface command for input gestures on the secondary virtual touch plane, such as magnifying or selecting user interface elements or enabling additional functionality based on the input gesture. Other embodiments are described and claimed.