The current casino in Gibraltar is based in Ocean Village which is pretty much the same as Marina Bay.
There was a beautiful casino prior to this located up by the rock hotel, not that the new concrete, square, neon lit building based in Ocean Village isn’t beautiful, beauty is after all in the eye of the beholder.
Interesting decor inside on the ground floor. Very colourful and bright and well lit. A modern interpretation along the lines of Vegas. There is a great restaurant, good value. Worth a visit.