AnTyx writes about playing the Dozor Night Game in Estonia, which “[grew] out of games that have been played for centuries; and certainly after the fall of the Soviet Union every young boy (and a surprising share of girls) all over its former territory went crawling around crumbling industrial parks. But the advent of modern technology – mobile phones, GPS, and the ubiquity of information on the Internet – has taken a pastime and turned it into a sport.”