And they've been pretty healthy since then too...
Microsoft's video tutorial can allow anyone to customise their own virtual space.
The company is the culmination of Wargaming's earlier partnership with VRTech.
Now five players can fight it out.
The release date is planned for Q1 2018.
VRDC will be taking place alongside GDC 2018 in March.
The free weekend begins this Friday.
Plans are also underway for PlayStation VR and Windows Mixed Reality versions.
VR/AR for Impact is showcasing its latest content at the United Nation's Sustainable Impact Hub at the WEF 2018 in Davos.
Cloudgine's online technologies will help to enhance Unreal Engine 4.