How can I set up a phone number to get fun automated responses?

Just a heads up, there’s no such thing as a completely fake phone number if you want it to actually receive calls. What you can do instead is get a VOIP number that people can call.

Those funny phone numbers are usually real numbers connected to an automated answering service. If you're going full DIY and up for a challenge, FreePBX might be the way to go. Just remember, you'll need a SIP/VoIP provider for setting up your PBX (private branch exchange) to connect with actual phone services. You could even hide a phone number in your game for players to discover!

Twilio is a great option for this! You can use it to answer calls and play pre-recorded audio messages. They even offer text-to-speech features, plus you can create menus or custom logic for your responses. If you're trying to keep costs down, you could look into self-hosting options like Fonoster or Asterisk, but keep in mind you'll still need to buy a real number to connect to your setup.