Yes, your purchased products will still work for as long as the underlying technology (flight simulation platforms, OS, and hardware) support them. The Bookmark products do not come with any built-in license protection, there is no “call home” function or key files to enter. Once you have purchased and downloaded the installation files, they should work in perpetuity.
The online Flight Manuals are hosted separately and will still be available on the same URLs after the website has closed.
The aging platforms that the Bookmark Draken models run on – Lockheed Martin Prepar3D and Microsoft Flight Simulator X – have become less relevant since Microsoft launched MSFS 2020. Porting the existing models to MSFS would require a lot of time and effort, and I simply do not have the skills nor the interest in aircraft and flight simulation that I had twenty years ago when I started the Draken project. I believe that letting go is better than making a half-assed attempt that will take years to complete (if ever).
