I am hosting a game jam here. I had a very good idea for making a game with command line interface.  I have seen not much games of this type. So it will be great to make a game around this idea. You should join this jam to know what are the possibilities when  creating a game of this kind. You can go crazy with this idea. The only restriction is that your games' core mechanics should be command line interface. However there can be other mechanics which are supposed to be controlled by commands. 

Take a look at the jam: https://itch.io/jam/terminal

discord:https://discord.gg/3kCyEPJQsa