Ghost Train is a strategy game for Mac users where your goal is to stop trains from colliding by constantly switching track junctions. This app is suitable for users of all ages, though its background music and scenery might be scary on some occasions, especially when two trains are crashing.
You can choose between two game modes. The first one automatically adds a new train to the track at every 30 seconds while the other game type lets you decide when to include railway vehicles on the route.
To be honest, I didn't enjoy playing this game. The main reason is that some of the trains move way too slow and you might have to wait a while to change the tracks junctions.
Another aspect I didn't like is that you have access to only one free level. You need to make an in-app purchase if you wish to play other two missions.
Cutting a long story short, I wouldn't encourage you to install this game on your Mac. You can easily find similar apps that offer you better graphics, more levels, and various useful features (for instance, the save option).