ScummVM for Mac is a program that allows you to play classic point-and-click adventure games on your Macintosh computer. Instead of needing the original game[SQ]s engine and potentially needing to run it through emulation software like DOSBox, ScummVM acts as a standalone engine that can run many games originally designed for older computer systems.

Essentially, it[SQ]s a versatile interpreter for various adventure game engines, mostly those using the "SCUMM" (Script Creation Utility for Maniac Mansion) system, hence the name. Many LucasArts games (like *Monkey Island*, *Day of the Tentacle*, *Indiana Jones and the Fate of Atlantis*) were created using SCUMM, but ScummVM supports games made with other engines as well.

So, if you own or want to play old adventure games, ScummVM avoids compatibility issues and provides a way to enjoy them on modern macOS systems with a consistent interface and often improved features like higher resolutions and save-state functionality.