When comparing Mark of the Old Ones vs FlightGear, the Slant community recommends FlightGear for most people. In the question“What are the best games on Linux?” FlightGear is ranked 23rd while Mark of the Old Ones is ranked 125th. The most important reason people chose FlightGear is:
FlightGear has scenery that contains environments to fly in from the whole globe.
Specs
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Pros
Pro Unique, inverse kinematics-based control scheme that allows rarely seen freedom of control
By utilizing an inverse kinematics-based control scheme there is zero need for pre rendered animations for the character. It is animated real time.
Pro Immersive, HP Lovecraft-inspired aesthetic
Mark of the Old Ones has a HP Lovecraft inspired aesthetics and graphics with the protagonist being a tendril laden creature who traverse landscapes that look fitting for any lovecraftian themed title.
Pro Free of restrictive DRM
Without having DRM loaded into the game users can not only play the game without an internet connection but also play it on as many of their compatible devices as they like. On top of this it can also be shared with friends, just as one would have back before DRM existed.
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 Limited architecture support
Mark of the Old Ones has no plans to create or support a 32bit version of the game which will limited people who are still using older 32bit systems.
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.