Pilot Plus has released Wycombe Air Park (EGTB) previously for Prepar3D and X-Plane11. They now did the same for Microsoft Flight Simulator. It is however, no conversion and is built natively for the simulator. Wycombe Air Park is a GA airfield West of London, UK.
The addon features full PBR textures and ultra-realistic texturing. If it rains, you can see raindrops on the windows of the control tower. There are VFR landmarks custom-made and placed in the area. Included are, for example, the local stadium, the Golden Ball Church, Stokenchurch mast and others. It has custom, hand-coloured aerial imagery for the airport and surroundings up to 12.5cm/px.
You can purchase Wycombe Air Park for MSFS from OrbxDirect for $18.99AUD (approx €11.72) here. You are eligible for a 25% discount if you own the Prepar3D or X-Plane 11 version. This is already possible if you bought it from Orbx. Customers from the PilotPlus website will be able to do this from October 1st.