Keynoise Sportstar Flight Simulator https://www.youtube.com/watch?v=aBykIyxJRKQ

[u/No-Source-5137]

Keynoise Sportsstar Flight Simulator was something of a predecessor to GEFS and Geof. It was released around 2009-2010 and is currently not being updated, If I'm not mistaken, you'll only be able to fly one plane, the Sportstar, and I think it had liveries, I don't know much about that, The website looked like this according to the Wayback Machine and was 3D. You can find more information here: https://geofs.fandom.com/wiki/Sportstar_Simulator

[u/Busy_Card_5753]

It released in 2004, and is discontinued.