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Feedback for Sub Upgrade
  • This discussion is related to the Sub Upgrade game.
    Description

    When driving a submarine, you need to sail through the whole sea, in whose waters you will meet many different marine animals and other obstacles that will prevent you from sailing further. You will receive a few points for each stone you choose. The red scale shows the oxygen level in your submarine. You are required to sail as long as possible in order to pick up as many gems as possible.