Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript. In this game, your goal is to solve a challenging safe combination by clicking on pictograms to input the correct code. Note that this is just a basic example and can be further enhanced and customized as desired.
To play the game, simply copy and paste the above code into a new HTML file, save it with a .html extension, and open it in a web browser (preferably on a smartphone for easy touch operation). You will see three pictograms representing potential safe combinations: an unlocked lock, a locked lock, and an hourglass. Click these pictograms in the correct order (1, 2, 3) to crack the safe. If you enter the correct combination, you will see a "Congratulations!" message. If you make a mistake, it will display a "Wrong combination. Try again!" message, and you can try again by clicking on the pictograms in a different order.