Construct Arcade - VR browser games platform.
X-Plane - The world's most advanced flight simulator just got an upgrade. Download the free demo today for Windows, macOS, & Linux.
rumii - Collaboration and meeting software for Virtual Reality
FlightGear - The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. It also simulates space flight in Earth's orbit. It's flight dynamics engine (JSBSim) is used in a 2015 NASA benchmark.
Admix.in - Make money from your VR/AR content.
Tom Clancy’s H.A.W.X 2 - Tom Clancy’s H.