A lot or a little?
Parents need to know that We Farm is a farm simulator with a social element that allows friends to pay virtual visits to -- and help out at -- one another's farms. The game requires a lot of patience, as things move very slowly -- a duck, say, will take two hours to go from egg to maturity. Erecting buildings or growing crops can take several minutes to several hours. So this is a game you need to play for a few minutes, put away, and then check back in on in a couple of hours. There is one way to make things happen immediately, which is the "Gro" formula. Gro can be earned in the game, but for the impatient, Gro can also be purchased with real money (up to $100 for a mega-pack of Gro), and thereby turn this awesome free game into an enormous expense.