I created this font with the idea that it would be written out and printed/screenshot/whatever and rotated right 90 degrees to be viewed and presented as it is in the game. I also added a visual difference between upper and lower case, as well as a few punctuation marks and symbols.

Here's the method:
Capitals and punctuation have rounded corners
Lower case has beveled corners
Symbols (numbers and such like $ # etc) have sharp/square corneres