VRWorlds will be undergoing some large changes over the next while. It will take quite some time so do not expect a new update soon (sorry!). We will elaborate on our plans at a later date so keep an eye out for a new news update. We will say that we plan to move from UDK to UE4 as our first step and that the game may no longer be free once we do so.
Thank you for your patience.
-The VRWorlds Dev Team