Arrnay is a non-canon, low-tech world in the Classic Traveller universe. It is being created to provide a “crossover” game world between a regular high-tech Traveller adventure and a low-tech (read: AD&D-style fantasy) world.
While it will have some similarities to a typical fantasy world, it will follow Traveller physics, i.e. there will not be any magic, but there may be magic-like technologies or abilities.
Learn about the planet here: Arrnay Library Data