Monkey Island is probably next to Indiana Jones Fate of Atlantis one of those really old games that I still play from time to time. One of the first games I played and one of those games where it doesn’t matter that graphics got better or gameplay was made more defined (eg old Sim City is not as much fun as even the next one later Sim City 2000, or old Summer Games/winter Games is sure not that much fun anymore for me).
Also those old Adventure games work super fine in ScummVM :D
Signal is the way to go :)