If you want to be alpha tester, look here GoTester Instructions.
After you installed the app, next steps are:
Now you are guest. You can browse the map, but you cannot play yet. 
Now:
 Shortly after registering your account in the App: Check GMail for a passcode!
 
 If you do not use GMail, 
ask us for your code!
 
 
 Enter passcode in app. (The mail actually provides a link, which forwards the code into the app for you)
 
Now your account is fully activated. You can play.
 First and primary goal is to collect as many 
different badge types (
Kinds of Badges)
 
 
 To move on the game map, move in the real world. This is a GPS based game.
 
 (Very) basic strategy I: Take all badges on the map, that you didn't put there yourself. 
 
 (Very) basic strategy II: Drop any duplicate badges you find in your inventory, i.e. keep one of every type.
 To drop a badge, go to your inventory, chose a badge, find the button to drop the badge to the map yourself.
 
 
 Note, 
your badge_capacity is practically unlimited, only duplicates, i.e. several badges of the same type, take capacity.
 
 
So much for now, we'll try to add more on Strategy.