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Multiplayer take-off in GEFS 1.4c
Multiplayer take-off in GEFS 1.4c
Original author(s)Xavier Tassin
Initial releaseOctober 2010; 8 years ago (2010-10)
Stable release
2.5 / April 20, 2018; 8 months ago (2018-04-20)
PlatformOpen Web Platform, Android
TypeAmateur flight simulation

GeoFS is a free online flight simulator based on the Cesium WebGL Virtual Globe,[1] which makes use of aerial imagery and provides a multi-player environment for pilots to interact with each other. GeoFS is exclusively built with web technologies and only requires almost any HTML5-based web browser to run. You start with a Cesna 172 Skyhawk. All other planes must be bough with money.


Created by Xavier Tassin, GeoFS was launched in October 2010.[2] It was originally built on the Google Earth plug-in as GEFS-Online (Google Earth Flight Simulator).[3] On September 1, 2015, support for the Google Earth plugin ended, which nearly resulted in a complete shutdown of GEFS-Online. In January 2016, in light of the Google Earth plugin's termination, GEFS-Online migrated to CesiumJS, an open source virtual globe platform.[4]


  1. ^ "GeoFS Homepage". GeoFS.
  2. ^ "It's live!". GeoFS Announcements Blog.
  3. ^ "The unofficial Google Earth Flight Simulator gets a new home and a slew of enhancements". Google Earth Blog.
  4. ^ "Moving GEFS Online from Google Earth to Cesium". Cesium Blog.