Multiplayer take-off in a Cathay Pacific Cargo Boeing 747-8F on GEFS 1.4c using HD imagery on Xavier’s account
Developer(s)	Xavier Tassin
Initial release	October 2010; 14 years ago (2010-10)
Stable release	3.9[1]  / July 11, 2024; 5 months ago (2024-07-11)
Platform	Web platform, Android, iOS
Predecessor	Keynoise Sportstar Flight Simulator
Available in	English
Type	Flight simulation
Website	www.geo-fs.com

GeoFS (previously known as GEFS-online) is a French multi-platform browser-based flight simulator based on the Cesium WebGL Virtual Globe.^[2] The free map is based on images taken by the Sentinel-2 and NAIP satellite, while an enhanced version, also known as HD, gives you a 1 day free trial, and after the trial, it costs $9.99 per year. Before 21 April 2018, it was free for every player and it used to be the default imagery.^[3][4]The game features a variety of planes, including aircraft made from members of the community,^[2] and features a multiplayer environment for pilots to interact with each other. In Q4 2018, the GeoFS Original and Lite version of the apps was released for both Android and iOS. ^[5] The main difference between the two is that the Lite version is Single-Player, contains three total aircraft, and only features the island of Corsica, with HD Bing Maps imagery being an in-app purchase, as opposed to a subscription in the Web version of GeoFS.^[6][7] As of December 2024, the mobile apps are now one app and feature a full version of GeoFS, plus it doesn’t feature ads.^[8] In the simulator, anonymous users use the screen name Foo.

Created by Xavier Tassin, GeoFS was launched as GEFS-Online (Google Earth Flight Simulator) version 0.1 using a Google Earth plug-in on October 1 2010.^[9] On September 1, 2015, support for the Google Earth plugin ended,^[10] which nearly resulted in a complete shutdown of GeoFS.^[11] In January 2016, in light of the Google Earth plugin termination, GeoFS migrated to CesiumJS, an open source virtual globe platform.^[12] On November 1, 2024, version 3.9 implemented Artificial intelligence (AI) to mix Sentinel-2 and NAIP satellite images to make an imagery with resolution to 1m/pixel compared to the standard 10m/pixel. Known as SR scenery, it is subject to change, and will likely replace the default SD Sentinel-2 satellite imagery.^[13][14]

GeoFS is a flight simulation, where one can fly to scenes and places like the Grand Canyon, Mount Everest, Great Barrier Reef, Great Wall of China and other locations that worldwide.^{[citation needed]} A notable location is the carrier USS John C. Stennis, where compatible aircraft, like the F-16 Fighting Falcon land with the aid of an arresting wire.^{[citation needed]}

In GeoFS, there are many aircraft available to fly, including commercial aircraft such as the Boeing 777-300ER, Boeing 737-700, Airbus A380, and the Concorde. Fighter jets include the General Dynamics F-16 Fighting Falcon and the Sukhoi Su-35. There are 33 official aircraft, including at Citroen 2CV. Many more are contributed by the GeoFS community. Notable community-contributed aircraft include the Space Shuttle Atlantis, Boeing 787, and Lockheed L-1011-1 Tristar^[15]

• Official website