I don't know why that haven't been done already, but i would love to have a freeplay mode on the game were it would work as the pc version, we could marry, have kids, etc... All the furniture/cas we bought would be unlocked to buy with our sims income intead of a game currency, etc... Seeing that in mobile devices would be such a big step for sims... Even minecraft plays like the pc version, the only difference are a couple of features that they need to wait some time to export from pc to mobile...
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