Today is a red letter day.
Ten years have passed since the launch of Half Life 2: Episode Two. Since Valve isn’t releasing anything today, I decided I would. This is the current iteration of Prison in a public .ZIP archive. Feel free to share this around and celebrate! Directions on installation and production notes can be found in the ZIP archive. This includes the release beta iteration 22 as well as every previous version of the map dating back to 2012 for your dissection pleasure.
https://drive.google.com/file/d/0B0DCC99KfpShRExnMmdham51TTA/view
If you would like to help playtest new versions or levels, please feel free to email me at the address in the ZIP archive. Thanks for your time, and I hope you enjoy this small slice of HL2 gunplay.