Thanks so much for your help. Except for a couple spots in the corners, the original territory is almost a perfect rectangle. Biter Park it will be.

Oh, I see. That's seems possible, because my daughter had a non-Steam version installed once upon a time, and I just installed the Steam version. I'm pretty sure I made a new map when I started playing, but I could see there were some saved games already.

I've explored around my entire original ...

Newly explored areas have discontinuities in terrain that don't look good.

Notes (not sure if any of them matter):
-I'm using Steam version (not sure about version number, but I installed it maybe a couple of weeks ago)
-I don't have a GFX card, just use the Intel onboard graphics
-The game has ...

Here is a project for you that should be loads of fun: Build the train network from a factorio game using Märklin Digital and use the arduino to control the trains so they mirror the trains in the game.

That's a really fantastic idea, but I don't think I have enough hours left for that in my ...

Right now, I'm thinking what I want is to write to a custom log file (i.e. to disk) from a mod, and parse that with a standalone program of my own, which will send serial info to my Arduino. It seems likely that won't be possible though-- I suppose the game designers wouldn't want every dude who ...

Hmmmm, interesting.

This seems a lot more elaborate than what I want, but it looks like the programmer is able to get his hooks on some of the information I want to use.

Right now, I'm thinking what I want is to write to a custom log file (i.e. to disk) from a mod, and parse that with a standalone ...

Forgive me if there's something already about this. I wasn't even sure how to search for it.

I'd like to be able to interact with outside devices-- an Arduino project connect to my computer via USB, or a background Windows app that uses a built-in web browser to accept inputs from online, etc. I ...