When comparing Prosperous Universe vs FlightGear, the Slant community recommends FlightGear for most people. In the question“What are the best Space Sims on Steam?” FlightGear is ranked 7th while Prosperous Universe is ranked 11th. The most important reason people chose FlightGear is:
FlightGear has scenery that contains environments to fly in from the whole globe.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Completely player-driven economy
Pro Opt-in to military conflict
You don't have to set your alarm to 4 in the morning because an enemy fleet is inbound and you never have to worry about your hard-earned property to be destroyed.
Pro Runs in any browser
The game runs in any browser. There's no flying around in space, which would require a heavy 3D client without adding any actual depth in terms of gameplay.
Pro Highly realistic space flight
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 Currently missing mid & end game content
As the game is currently at its alpha stage, it's still missing content that makes it fun to play for a prolonged period of time.
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.