Sure! Here's a simplified implementation of a game called "Evolution" that simulates the birth and death of custom creatures using JavaScript, HTML, and pictograms:
In this game, there is a `Creature` class representing each individual creature. The game begins with an initial set of creatures randomly positioned on a canvas. In each game loop iteration, one creature dies randomly, and a new creature is born at a random position with a random size. The game state is rendered on the canvas every second.
Please note that this is just a basic example, and you can modify and expand the code according to your desired game mechanics and visual representation using pictograms.