Sure, here's an example of a simple game gallery implemented as a single HTML file using JavaScript. It assumes smartphone operation and uses pictograms for display:
Game Gallery
In this example, we create a game gallery with three game cards. Each card displays a pictogram, game name, and is clickable. When a game card is clicked, an alert is shown indicating which game was selected. You can replace the image URLs (`emozi_all/game.png`, `emozi_chicken.png`, `emozi_rabbit.png`) with your own game pictograms and customize the game behavior based on your requirements.