Codex is unique type of word game and first of its kind on any platform. It is simply to play since all you need to do is to swap tiles by tapping on them. It is however a very challenging game since you needs to form complex groups of words to complete each level. Unlike some other word games which give you a list of random letters but cannot guarantee that you can make words out of those letters, every level is Codex is guaranteed solvable. However, we also do not restrict you to use only specific words. Every level in Codex is open-ended and you can complete the level by using any valid word not only the ones we choose.