Given that the demographics for wargaming and cruise ship passengers significantly overlap (white, elderly, mostly anglophone, with a need for regular hours and a predictable feeding schedule) then why not? It might even be commercially viable. Shuffleboard anyone?
Oh and in answer to the question, I think the last time anyone tried was 1983, aboard the Achille Lauro*. It ended badly.
* I travelled on the Achille Lauro as a small child, I suspect to a greater or lesser extent every trip ended badly, which she conclusively demonstrated by burning to the waterline and sinking off Somalia.