If you have nostalgia for this, check out Free Pascal. It's an open-source Pascal/Delphi clone, and includes a clone of the blue DOS Turbo Pascal editor that will give you the vibe you crave.

I used it for a few of the Advent of Code days this year, but man the nostalgia wore off. Both the limitations of the IDE and the verbosity of Pascal weren't "fun" to operate in daily coming from the modern world. But definitely sweet memories.