Today I found out about a new game by Zach Gage and Jack Schlesinger, who created one of my favorite iOS games, Good Sudoku. It is a word game called Knotwords. Playing it is a little like playing crossword constructor. You fit letters into an empty crossword grid so that they make words. The tutorial and first few levels are very easy, but the game gets more challenging—and more fun—once you pass them. I am enjoying it so far, though I have not yet decided if I will purchase the full version.