"To celebrate the 25th Anniversary of the release of Half-Life we reunited the original development team to share their memories of creating Valve's first game."

Oh and not only did Valve decide to celebrate Half-life's 25th anniversary with an awesome documentary, they also released an incredible quality of life update to the game updating it for 4K as well as running on the Steam Deck!

https://www.half-life.com/en/halflife25