VATSIM
is the Virtual Air Traffic Simulation network,
connecting people from around the world flying online or acting as virtual Air Traffic Controllers.
VATRUS
Russian speaking VATSIM community, which is a part of VATEUR.
Activity of community happens with the VATSIM and VATRUS Acts of Conducts.
VirtAirlines
Economic platform for Microsoft Flight Simulator funs,
X-Plane, Prepar3D. Simulation of an economic part.