I don't get this submission. I wrote the same thing in 1982 on a TI-99/4A with 16kb RAM and a 3MHz 16 bit chip. It loaded from a cassette deck using an analog stream from the tape. It displayed on my TV. It was written in BASIC. It sucked.
But it *worked* fine, I mean it drew the map in well under 10 seconds, printed it, then used the edge dots of one side as the seed for the next section of the dungeon. Isn't that what this is, and why do we even need an ARM for this, you should be able to get decent performance from a 4004!
This was my first real piece of software, and it worked on the first try (by that I mean I wrote it and bugfixed it, and...it worked). I was 13. You millennials or whatever you call yourselves should be running rings around me - who needs multiple cores or C# for this?? Do it in Minecraft, then I'll be impressed.