I created “Valley of the Nith” in 2016 as a game design exercise at the University of Waterloo Game Jam. I figured there had to be more game design potential with “Tetrominoes” as they work so well in Tetris and Blokus. I came up with the triangle pattern design and made a few prototypes. I play tested the scoring with a friend and we found it to be fun and engaging. The game is based around a competitive map creation mechanic where you try to create the largest area of your colour, black or white, while blocking the progress of your opponent.

The Valley of the Nith is available for sale here: https://www.thegamecrafter.com/games/valley-of-the-nith

The entire contents.
An example of a completed game.
Another example of a completed game.