Pretty good deal from CDKeys.com which to my understanding is a legitamite website.The 19.99 is in U.S. dollars but you can save 5% by liking the site on Facebook and all together it should be less then $25 Canadian.
Here's the link:
http://www.cdkeys.com/pc/games/mad-max-pc
Here's the link:
http://www.cdkeys.com/pc/games/mad-max-pc