Required software

All you really need is a standard web browsers. It allows you to watch the stream on this page. An account on the NordicFuzzCon homepage also allows you to watch the stream in better quality and gives you the ability to join Discord. Discord has a web interface, all you need is an account, but you might want to ahead of time. If you want to participate in some games you might need the game or an account with their services.

Recommended free software

For many games you can play from your browser, you just get a link and can enjoy it with any compatible phone, tablet or computer.

Optional software you can get

You do not need to have all this, but if you have it others might be interested in playing with you.