Sure, here's an example of a simple family tree game implemented as a single HTML file with JavaScript using pictograms:
Family Tree
Grandfather
Grandmother
In this example, we have a simple family tree with two grandparents displayed as pictograms (assuming the pictogram images are named "emozi_all/family.png" and "emozi_apple.png"). When a user clicks on one of the pictograms, an alert message will be displayed indicating which person they clicked on.
Note: Make sure to replace "emozi_chicken.png" and "emozi_rabbit.png" with the actual image file names you want to use. You can also add more family members and customize the styling as desired.