There are various unfinished versions of Half-Life 2 that have come to light over the years, all of which reveal interesting things about how Valve's plans changed over time as it painstakingly refined and pruned one of the PC gaming greats.
A new video by YouTuber and Half-Life 2 obsessive CMDR RileySV delves into the 2003 beta, and specifically one of the finished game's little mysteries: "The elusive City 17 river." This is a river that can be seen at a couple of points in the final game, but the player never travels to it. Yet at one point it was intended to play a much greater role in the lead-up to the game's climax.
