FSX. The french team, Alro Creations, who created a full lighthouses library, is launching a new project, an offshore vessel with a helipad, like the real Sevenstones, operating somewhere near Guernsey island.
The development of the helipad itself is interesting. It's surface will roll up to 8° degrees amplitude and can pitch up to 4/5 ° degrees. A real challenge for helicopters.
No release date yet, but it's coming this year.
The lighthouses collection is compatible with France VFR regional Bretagne/Britain.