As AR and VR continue to gain traction, we continue to explore tools with which we can create immersive virtual worlds. Our positive experience with Unity, one of the two major gaming engines, led us to feature it in previous Radars. We still like Unity but are also excited about Godot, a relatively new entrant to the field. Godot is open source software and although not as fully featured as the big commercial engines, it comes with a more modern software design and less clutter. Offering C# and Python further lowers the barrier to entry for developers outside the gaming industry. Godot version 3, released earlier this year, adds support for VR and support for AR is on the horizon.