From GameWatcher: “Tropico 6 is coming soon and is looking hugely impressive, and despite having a January release date the Tropico 6 beta is running right now. We’ll show you how to get a Tropico 6 beta key and get access to the Tropico 6 PC beta!”
Source: N4G PC Tropico 6 Beta: How To Get a Tropico 6 Beta Key