Sure! Here's a simple game implemented as a single HTML file using JavaScript. The game is called "Jahn's Pictogram Adventure" and it's a memory matching game with pictograms.
Jahn's Pictogram Adventure
To play the game, simply copy and paste the above code into a new HTML file (e.g., `game.html`) and open it in a web browser. The game will display a grid of hidden pictogram cards, and your goal is to match all pairs by revealing the cards two at a time. Click on a card to reveal it. If two revealed cards match, they will remain face-up. Otherwise, they will be hidden again after a brief delay. Keep playing until you match all the pairs.
Enjoy playing "Jahn's Pictogram Adventure"!