Prepar3d uses the MSFS X engine, so 90%+ of mods/add-ons for MSFS X/10 work for Prepar3d.
MSFS X is, like a lot of games, a warmed-over version of a previous game engine, with improved directx support and tweaked to run on the latest (at the time) version of windows. I forget if it has it's roots in MSFS 3.0, 4.0 or 2002, but it was a pretty old engine in 2006 and has gotten a few updates over the last decade but is pretty crufty and when you play it, unless you have $300 of after-market add-ons, is very obvious it's old, especially compared to x-plane etc
As the other guy said, the people still heavily invested and running the modding scene for a 20 year old video game are... esoteric.
Playing MSFS X as a newcomer at this point in time is mostly to inspect a historical artifact, but it's a very detailed simulator if you want to take off in a 747 from LAX and fly it to London or Moscow non-stop.
MSFS X is, like a lot of games, a warmed-over version of a previous game engine, with improved directx support and tweaked to run on the latest (at the time) version of windows. I forget if it has it's roots in MSFS 3.0, 4.0 or 2002, but it was a pretty old engine in 2006 and has gotten a few updates over the last decade but is pretty crufty and when you play it, unless you have $300 of after-market add-ons, is very obvious it's old, especially compared to x-plane etc
As the other guy said, the people still heavily invested and running the modding scene for a 20 year old video game are... esoteric.
Playing MSFS X as a newcomer at this point in time is mostly to inspect a historical artifact, but it's a very detailed simulator if you want to take off in a 747 from LAX and fly it to London or Moscow non-stop.