Sure! Here's an example of a simple game implemented as a single HTML file, using JavaScript and enclosed in script tags. This game is text-based and can be played on a smartphone using pictograms for interaction:
Guess the Number Game
To play the game, open the HTML file in a web browser or a smartphone browser. You will be prompted to guess a number between 1 and 100. Enter your guess in the input field and click the "Submit" button. The game will notify you if your guess is correct or provide hints if it is too high or too low. Keep guessing until you find the correct number.