Here are few very useful links: their products are of high quality, you only have to choose what suits you to improve your virtual flight experience.
Flight simulators:
Aerofly FS2:Aerofly
Flight Gear: Flight Gear
Flyinside Inc: Flyinside
GeoFs: GeoFs
Infinite Flight:Infinite Flight (For Apps)
Lockheed Martin Prepar3D: Prepar3D
Microsoft flight simulator 2020, Deluxe Edition: MS2020
Rortos: Rortos
X-Plane: X-Plane
Weather engines:
Active Sky Next (ASN)
Pilot’s FS Global Real Weather (FSGRW)
REX
xEnviro (X-Plane)
Flight planning for X-Plane:
XFlight Planner
Sky Vector
Sim Brief
Cloud Texture sets:
Tools:
For gliding activities and to be able to see shadows on the ground due to the presence of clouds, for those who do not use P3D, there is Cumulus X: Peter Luerken’s Flight Simulator Tools
An essential site, since it holds the FSUIPC and MakeRunways files (used among others for the Metal2Mesh Mirage 2000C):The Official Peter Dowson Page – Schiratti.com
For X-Plane, the program improves the weather and offers a possibility of modifying the colors and general look of your flying environment: X-Aviation
For X-Plane, a reality expansion pack: Simcoders
For charts and navigation data: Navigraph
Apps for flight training
Flygo Aviation (For IFR training)
Gyronimo for aviators
FlybyWifi
Extreme landings
VOR tracker and IFR procedure trainer
FSIM Space Shuttle
Remote Flight (For Apple)
AirTrack and AirFMC (For Apple)
Flight Training
FS Flying School
PRO-ATC/X
Pilot2ATC (Also works with X-Plane via XUIPC)
FSi Panel
Added armaments:
On the VRS site you will find the famous TacPack, which contains the armaments used by the VRS FA-18E Superbug X and the Metal2Mesh Mirage 2000C (and the military aircrafts to come).
Fighting against forest fires
For FSX and P3D, you can practice fighting against forest fires: Fire Fighter X
Fighting a virtual battle (single or multiplayer)
For those of you who are interested in being involved with a predetermined scenario: Il-2Sturmovik: Battle of Stalingrad et Il-2Sturmovik: Battle of Moscow
Over Flander’s Fields
Wings over the Reich
War Thunder
Virtual aviation stores offering products from several companies:
Aerosoft
Just Flight
Microsoft Marketplace (no internet direct link, in-store with MSFS 2020)
Orbx
Onesimstore
PC Aviator
Simmarket
Simshack
Store.X-Plane
The FlightSim Store
Aviation Videos: to change your mind!
Red Bull Akte Blanix II
Crosswind landings at Dusseldörf
If you don’t get vertigo with that…