If you're reading PC Gamer, there's a good chance you're at least acquainted with Half-Life 2. For many, it's the unforgettable tale of that bit with the helicopter, or that bit with the zombies, or even that bit where that damn NPC wouldn't get out of your way.
Once, though, that story was very different. Okay, well slightly different. Different enough to feel weird and alien to our Half-Life 2 knowing future selves. Valve News Network combed through 2003's leaked Half-Life 2 beta in search of clues as to what might have been—pairing it up with information from Valve's own Raising The Bar.
It's not new info—people have been digging through the leak for some time. But as a Half-Life 2 fan, it's nonetheless a fascinating round-up of what could have been. It's not a huge difference, and in many cases the changes seem born out of certain levels being cut. Still, it's weird to peer into the alternate universe where Eli isn't Alyx's dad.
Much of the leaked content can now be used inside of Garry's Mod. Here's the Steam Workshop link, should you want to do that.