Tagg

Tagg is just like your childhood tag game, but now you have smartphones. At any time, somebody is 'it' and has
to run away from the others and at the same time complete challenges.
The winner of Tagg is who, after 5 hours,
a day, or whatever period you set has collected the most points by completing challenges. Only the runner
can complete challenges and thus collect points. At the same time, the runner needs to stay hidden from the
chasers. Nevertheless, the runner may not enter any non-public space. The other players see the runner's
location on the map (while the runner doesn't know where they are) and need to chase the runner.
The chasers may also communicate among each other.
As soon as a chaser gets within 2 meters distance of the runner (or ideally taggs the runner),
the next runner is chosen.