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i earnt today 1200 satoshis so far from 2 inventions on the test server
and i was half day outside and shopping
1200 in "half day" from 2 inventions = 1200 daily (24h) from one. It means: 50 sat./h - sounds good.
It was Inventios we have? Cofee, Absinth, Hot Dogs?
there are more inventions that was not mentioned in this forum..
i had absinthe and hot dog stall + as bonus i have lucky game..
every invention has unique formula, but they are made to reward the active players..
and remember: it's your FOREVER and i am not planning to close this game
so it will be a profit maker all the time