itch.io

Offline mode simply adds a Twitch chat emulator inside the game itself, it doesn't make the game playable with mouse & keyboard.
Once starting a game in offline mode, you can press F2 again and a command line will appear at the top-left of the screen. You can then type the commands there instead of a Twitch chat.

At the moment I only use discord to share patch notes, here is a direct link:

Patch Notes

Thanks for the comment! I'm afraid the game has a big performance issue but I no longer have the project file to fix it :(