To celebrate Halloween, we've created a special themed episode of a brand new video series. Introducing ValveTime Top 5, a new series in which we look at the Top 5 best or worst elements of Valve games. To start off, we thought we'd look at the Top 5 scariest enemies in Valve titles. We're also giving away of Metro 2033 to celebrate the new series, don't forget to leave a comment below letting us know what you think of the video. Feel free to leave suggestions for future episode ideas, you never know - we might just like your idea and use it one day!