When comparing FreeSpace 2 vs FlightGear, the Slant community recommends FreeSpace 2 for most people. In the question“What are the best Space Sims on Steam?” FreeSpace 2 is ranked 3rd while FlightGear is ranked 7th. The most important reason people chose FreeSpace 2 is:
Very dramatic story.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Dramatic story
Very dramatic story.
Pro Freespace upgrade project
Volition has released the source code for Freespace 2 under a freeware like license which allows players and modders to modify every aspect of the main game.
Pro Solid Fan community that is committed to this game
Additionally, with the source code being freeware, there have been amazing fan-made games built upon the same engine (Diaspora - Battlestar Galactica). Use the GOG, NOT STEAM. STEAM is garbage for this game. You need GoG and Knossos launcher from the Hard-Light Productions team. See here. Enjoy!
Pro Supports force feedback joystick
Playing with a force feedback joystick with lots of buttons is a great option.
Pro Worldwide scenery
FlightGear has scenery that contains environments to fly in from the whole globe.
Pro Free and Open Source
All code written for FlightGear is opensource and available for anyone to use.
Pro Crash animations in some aircrafts
Pro It has world-wide multiplayer
Pro Live cockpit
Pro A lot of aircrafts to add
Pro It has amazing graphics
Pro You can almost recreate real incidents
Pro No bugs
Cons
Con Need to be computer savvy
There are some minor modifications that need to be adjusted for each install. Not hard, but potentially challenging to a non-tech person. Having said that, the community is very supportive, albeit very nerdy.
Con Steam version
Users complain about the Steam version, it does not seem to include third-party software that is included in the GOG version.
Con Pure action game
There is no simulation of space or economy, it is just simple FPS action.
Con Not as graphically advanced as commercial competition
Con Getting stuck upside down
After a crash a pilot may be stuck in an upside down position with no way to recover.