Hello everyone. I thought this was a complete set of all three games but I only seem to get the first one once I download the executable offline file. Am I missing something or is that the way it is? Thank you in advance.

I downloaded through the GOG Galaxy client, and clicking the play button just launches the first game. I'm able to get to the second and third games through the "additional executables" option in the launcher.

Try checking the install folder, there should be folders there for all three games.

Thank you both of you. The help is much appreciated.

You're welcome. Have fun!