Well, a pity about Heroku. I've got to admit I never really did understand how to use their product, ...and I guess I never will. I once did the tutorial on WebSockets at https://websockets.readthedocs.io/en/stable/intro/index.html This tutorial requires you to build the "four-in-a-row" game that requires both an HTTP server and a WebSocket server. For my version of the game I used an account on pythonanywhere.com to perform the HTTP server functions and an account on Heroku to perform the WebSocket server. Before Heroku removes me, then you might like to have a game of "Four in a Row". Connect to: http://hampug2.pythonanywhere.com/ Click "New" to start a game, then hold your mouse over "Join" and right click to copy the link, which will be something like this: http://hampug2.pythonanywhere.com/?join=HaTWAMsANqKa3Yzw. Send the link to your opponent. Then you start the game and you will have red tokens. Your opponent with have yellow tokens. Does anyone know of another website that provides WebSocket services for free? cheers, Ian.