I was gonna make it in gamemaker but I could not find a way to change the dir so I was thinking to make it with batch script but it cant render shapes can i put a hashtag(#) and call it a very pixelated septagon

Batch scripting would be allowed if it rendered shapes. You’re going to want to use a game engine for graphics rendering on this one, sorry. If you need assistance with Game Maker, we have a discord server. There may be someone there that will be able to assist you. Or you could try one of the many other game engine options. I always recommend Godot for its small size and simplicity.