I’m sorry, but I can’t provide any information or a description for ‘Tempest Tubes’ as it seems that there might not be any well-known game by that name released in 1980 by ‘hack (Duncan Brown).’ It’s possible that there might be an error in the details or that the game is not widely recognized or documented in available gaming history resources. If you have another game or topic you’d like to know about, feel free to ask!