The original Entropy: Zero tells the story of Aiden Walker, a metrocop working for the Combine. In that mod, Walker’s transport train crashes and kills everyone on board except himself. To make ...

Entropy: Zero 2 releases August 20. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. There's a lot going on in the Half-Life 2 mod scene at the ...