Hello,
In this text tutorial, I'll be showing you how to install Wine and configure it so you can run A Hero's Call.
The good news: You will be able to run any game that uses SAPI after this on your mac!
The bad news: The process is a bit lengthy, but not too hard.
Step 1: Download Wine for Mac 
To download Wine for mac, go to
https://dl.winehq.org/wine-builds/macosx/download.html
The latest version, as of now, is 3.0 RC. If there is a newer version, download it. You want to download the development version, as it is the most recent.
Step 2: Install Wine
Now, run the wine package you just downloaded, and install it.
Step 3: Run the wine devel.app application that was installed so a wine prefix can be created.
This is important, because without a wine prefix, you won't be able to run programs. When you first launch wine, it will try to install Mono and Gecko. You will need neither of these, and the installers are inaccessible. Simply tab and press enter in the windows. The window should close. If it doesn't, command tab out, then back in, and try tabbing and pressing enter again. Once the windows close, you should be left with a terminal window.
Step 4: Install Homebrew
If you don't already have Homebrew, you should now install it. We will install Winetricks using homebrew. To install homebrew, type the following command.
Note: This command may span multiple lines. Make sure you copy the whole command.

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

You may be asked to enter your password.
Step 5: Install Winetricks
Open up terminal, and type:
sudo brew install winetricks
Enter your password, and winetricks will install. This process may take a bit.
Step 6: Install the Dot Net framework and the Microsoft Speech SDK
You should still have terminal open. If not, reopen it. Now, type:
winetricks -q dotnet462 speechsdk
Now, wait.
Step 7: Run A Hero's Call
Now, you'll be able to run AHC! Activate the game, and give it a go! If something doesn't work, drop me a tweet or an email. Enjoy!