We introduce ROS.NET, a series of C# projects that allow a managed .NET application to communicate with traditional ROS nodes, we then present a wrapper for it that allows Unity applications to integrate with ROS. Unity is a game design tool which can be used as a 3d rendering engine and a physics engine. We present two applications of combining ROS and Unity, one in the form of a ROS Virtual Reality engine, usable for robot visualization and control, and another in the form of a Project Tango device driver, which can also be used for visualization and control, and which we plan to augment for 3d scanning and reconstruction.