Recently released, Farm Satoshi is a farming sim with a difference - can you guess what it is? - yes, you can earn Satoshi from it. (For the uninitiated, Satoshi is the smallest denomination into which Bitcoin can be divided - 100,000,000 Satoshi = 1 Bitcoin.)
The game itself is simple but nicely constructed, I don't play farming sims usually so don't know how it compares to the popular ones but my guess is that it's much simpler to play. Still, there are a few options, leveling up, basic management options and plenty of decisions to be made - you have to make sure you keep stocked up with enough feed (and the right sort of feed for the type of animals you buy) and water, level up your warehouses appropriately, and as your player rating levels up you can buy more types of animal / feed etc, and increase your profit potential.
I'm not sure what the long-term earning potential is, probably not very high, but compared to faucets it's at least a fun way to make some Satoshi. The devs seem intent on getting the players involved and trying to incorporate their ideas too.