Nice 2nd Edition avatar, steve! Welcome. Yes, indeed, people play Theater of the Mind style games on here. There are 1000's of games happening on here, many different game systems, in all styles of roleplaying. Roll20 has it's own built-in voice and video so you can see and hear your group, along with a text chat (that has dice roller). In that case, the map-area (called the Page in Roll20) could be used to display a photograph, or a logo for your game, or pictures of each Character's face/portrait, whatever images that you want, even if it is not a map and tokens. You can also enable the 3D dice if you want, making visual dice that roll in that main area of the screen. Alternatively the width of the Chat panel can be extended to use more of the main screen. The size of the Video area for players can be expanded to Size Large to take up more of the main screen. Or as you asked, yes, you could put nothing there, and have 'no visual aid', in that case perhaps set the background color to something pleasing. The grid itself can be enabled or disabled, and configured many different ways (square, hex, invisible, off, etc). Wiki docs, <a href="https://wiki.roll20.net/Main_Page" rel="nofollow">https://wiki.roll20.net/Main_Page</a>