Half life 3 rumor: Valve has picked up the best developers from some of the most famous game studios too work on Half life 3

Note: Half life 3 is always in development and the game keeps getting scrapped before reaching the end point because it's just not good enough yet.

The details are in the link but the general gist is Half Life 3 may have an open ended gameplay style, destructible environments, and player choices impacting game world.

Also check out this super cool Fan animation for half life:

Kamala will win.