Is there a free flight simulator?
GeoFS is a flight simulator with a global environment generated from satellite images and digital geographic data. You can run it for free in your web browser without anything to install, subscribe to worldwide HD aerial images (suitable for VFR flight) or install the available mobile Apps. Flight gear because it has some systems depth and requires no internet, unlike GeoFS. I don’t think you can even call GeoFS a proper sim. Flightgear all the way as far as freeware goes.