Tube is a fast food restaurant with two locations in Liberty City: Portland View, Portland and Torrington, Staunton Island. and only made its appearance in Grand Theft Auto: Liberty City Stories. Tube is a parody of the Subway restaurant as tube, particularly in London, and subway both to refer to an underground rail system. Tube's logo bears a striking resemblance to Subway's logo. The first two letters (TU) are orange, and the last two (BE) are white opposed to Subway's yellow and white combination. The sign also has arrows coming off the 'T/U' and 'E'.
- Substandard - A food business in Grand Theft Auto: San Andreas, also based on Subway.
- Bite! - A food business in the HD Universe also based on Subway.