Sure! Here's a simple text-based game based on the world of Dungeons & Dragons. Since you mentioned using pictograms, I'll represent the different options using text symbols. Please note that this is a basic implementation and can be expanded upon as per your requirements.
This basic implementation allows the player to choose a class and a weapon, earn points by defeating enemies, and spend those points on upgrades. Note that this is a console-based game and the output will be displayed in the browser console. You can customize and expand upon it according to your preferences.