Sure! Here's a simple generative art game implemented as a single HTML file using JavaScript. The game will display a canvas where the user can create beautiful artworks by moving their finger (assuming smartphone operation) around the screen. Playability in terms of interactivity will be limited, but it will still serve as a visual game-like experience.
When opened in a web browser (preferably on a smartphone), this script will create a canvas where the user can draw using their finger. As they touch and move their finger on the screen, lines will be drawn, creating unique generative art.
Although this example does not involve pictograms, it provides a playable sample game-like experience where the user can interact with the canvas and create their own artworks.