One of the greatest total conversions for HL yet, creative settings and a lot of effort you don't always see. (note: i may or may not be helping test gaem)
This will go down in history as one of the greatest fangames of all time. I take issue with a few characters but otherwise, it's a fan prequel that leaves you wondering about what's happened after the credits roll.
Chapter 1 many years ago did a lot that I never really saw while playing UT, and Chapter 2 outright did one noteworthy thing about UT extremely better. We are not leaving Toby's wild ride any time soon...