The game is problematic on Steam for Macs running Mac OS X 10.11 El Capitan.
The game works, but you can't launch it directly from Steam, it won't work and will have a black screen with
music. I found a workaround and fix-- Instead launch the game directly from the finder, go to the game in your
folder and double click it and it will launch and work as expected. Others suggested to set the game in 32 bit
mode to be more stable and I set it to 32 bit mode. With my workaround the game will work fine. You can make
an alias/shortcut of the game on put it on your desktop or put the game icon on your dock for quick access.
Happy gaming, my fellow Mac gamers!
UPDATE: updating to the latest steam resolved the problem-- the game now works as it should when launching it via Steam for Mac. MrSeeker January 30, 2016 New Google SEO Bandung, Indonesia

The fix to Might & Magic X Legacy for Mac on Steam and Mac OS X 10.11 El Capitan
Posted by Maestro Game VIP on Saturday, January 30, 2016
broken and won't launch when you try to play it and I have the solution on how you can play The
Witcher 1: Enhanced Edition by using the free gog.com version instead
.
1. download the game using the CD key on: www.gog.com/witcher/backup
2. go to the directory where you installed the gog.com version of The Witcher 1: Enhanced Edition
<key>Program Flags</key>
Underneath it, you will find this line:
<string></string>
Change the second line to:
<string>-dontForceMinReqs</string>
Save the file and try launching the game now.
Just go to GoG.com and enter your Witcher CD Key provided by Steam and GoG.com will provide with a
DRM free version of The Witcher Enhhanced Edition for free as a backup and download and install that
and then you need to modify it to get it to run on Mac OSX 10.9 Mavericks:
Instructions:
1. download the game using the CD key on: www.gog.com/witcher/backup
2. go to the directory where you installed the gog.com version of The Witcher 1: Enhanced Edition
and Right-click The Witcher.app, and select "Show package contents". Go into the Contents directory
and open the Info.plist file.
Find this line:
<key>Program Flags</key>
Underneath it, you will find this line:
<string></string>
Change the second line to:
<string>-dontForceMinReqs</string>
Save the file and try launching the game now.
The screen will be black but give it a minute or two to load up because it should work now.
MrSeeker
August 17, 2014
New Google SEO
Bandung, Indonesia