News Roundup - 12/17/2013

• Rockstars take on Capture the Flag hits GTA Online tomorrow 
• It's time to save Mercenary Day in Borderlands 2 
• With GeForce Experience and Kepler based cards, you can now stream to Twitch 
• Dementium II HD available now on Steam 
• Perfect World celebrates the holidays across its free-to-play games 
• Basement Crawl releases its first screenshots 
• Batman: Arkham Origins gets new multiplayer mode 
• Ongoing Impressions: World of Tanks - Xbox 360 Edition