Word Worm is a word-making game against the clock. The goal is to get a little worm to the finish line by making words using the letters that block the worm’s path. Once a word is accepted, the letters will disappear, making new space for the worm to move into.
There is presently a dictionary of 84,000 English words. I originally used a much larger database but it made it too easy to cheat - every other random word you ‘make up’ is actually an obscure English word, it seemed.
Further instructions are on the community page and in the game itself.