Valve has announced that THQ's Metro 2033 will join the growing list of titles that support Steamworks. The PC version of the game will offer a number of Steamworks features, including Achievements, updates and DLC. So, you can look forward to earning some sweet, sweet cheevos while exploring the creepy environs of the Russian metro system. And trust us, it is creepy.

It's worth noting that with Steamworks support now official, it's likely that Metro 2033 will also be joining the ranks of downloadable titles that won't be offered by competing services like Impulse and Direct2Drive. If you're particularly loyal to another online distribution service, maybe a free copy of Red Faction: Guerrilla will help grease the hinges on the old wallet.

This article was originally published on Joystiq.