You'll need to run the game through ScummVM which makes it compatible with modern systems. So download that.

It won't open the game as is however, so then do this:

Unrar/unzip the downloaded .bin file, so its folder contents are easily accessible. Locate the "Myst III English" folder inside, open it, copy the "language.M3U" file and paste in the previous main folder. Rename this file "ENGLISH" (No need to include .M3U or quotation marks).

Open ScummVM, click Add Game, navigate to the game folder and click choose. Select the correct game option et voila!

I recommend turning the widescreen mod on in ScummVM's game options as well as whatever other graphics options suit you best. Sadly, it will be pixelated no matter what. It's an old game with low resolution.

Very disappointed. After unzipping the file I get a disk icon which when I right click on it it says "mount". ??? There are zero installation instructions

For Windows, I had to change .bin file's extension to .cue, and it worked flawlessly. Maybe that'll help for mac too, I don't know... Thanks anyways.

I downloaded the files, can someone tell me what should i do to install the game or run it?