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Photos: Playing 'SF0' offline
Players of Web-based game "San Francisco Zero," or "SF0," try to complete many tasks offline.
1 of 2 Bill Detwiler/ZDNET
Bridge tolls
Players of Web-based game "San Francisco Zero," or "SF0," try to complete many tasks offline. One involves paying the bridge tolls of at least two additional cars.
2 of 2 Bill Detwiler/ZDNET
Nontraditional wallet
One task "SF0" players can complete is creating a nontraditional wallet. This player took the assignment seriously.
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