Pattaya City, Thailand: Police fine 7 people for gambling on card games. (source)

Poughkeepsie, NY: 2 men rob a card game and hit someone with a blunt object. (source)

Covina, CA: Man pulls a gun and robs a Toys-R-Us. (source)

Some other game-related violence …

Tegucigalpa, Honduras: Gunmen kill 14 at a local soccer game. (source)

Jacksonville, FL: Woman pleads guilty to murder after shaking her baby to death for continuously crying while she was trying to play Farmville. (source)