[EricH]

You know, I think that the game theme is going to be parallel.

Think about it. Dave's Morse hints point to telegraph stuff. Telegraph wires were often run in parallel, the better to keep going if one failed. More than that, they ran alongside railroad tracks, the better to maintain them. I have yet to see a train track where the rails aren't parallel, save on the open side of a switch.

Now, Hint #1 shows a device that has parallel rails. It goes on the field somewhere, most likely.

Hint #2 shows a field border, which has parallel rails. Again, it goes on/next to the field.

It's a parallel game. Now to figure out what the parallels are between the hints and the game objects...