Yes, free-roam, im not even sure i like this term, its more just a "game", i mean in a platformer you can move back and forth... is that free roam?
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Just to me it gives a more "gamey" rather than "novely" feel to the game overall, but of course anytihng needs substance, just the thing that most games here lack, because they are mostly filled with, as you say, grind, which is just to pad the experience, or add a feeling of "accomplishment", some like me feel that as empty, but seems many like it, too