Would be nice if I had video

I just dowloaded this for a late 2012 iMac 27”, 24 GB of RAM and 1 TB disc space, the only video card offered, running 10.11.1 No video. I get the audio but it’s useless. Cyan, I want my $17.99 back. I loved this game when it first came out and was looking to reexperience it. No luck it seems.

Kitchen Curmudgeon about realMyst: Masterpiece Edition, v2.0.0