This is quite impressive! The vehicles and flight simulation suggests that this is being developed for some specific game, but I couldn't find any references on the page. Does anyone know if this is the case, or if the engine is just being developed for more general purpose use?
"[Outerra is hiring] to work on several game and simulation projects for large defense contractors in partnership with TitanIM", with the latter being "A global sandbox [...] simulation software platform" and "[holding] the exclusive license to the [Outerra] world rendering engine for military applications."