There are some neat ways you can customise your puzzles with Crossword Forge, such as changing the font and colours, adding foreign characters and applying a picture in the background of the crossword. What is more, the grid can be as big as you like, meaning you make the puzzle really easy or really difficult depending on the intellegence of the person you are making the crossword for (or on how much you hate them!) Shareware. Crossword Forge 5.4.