Game help please

hey guys I'm new to this forum but could really do with some advice. I've got the Samsung galaxy s8 coming next week, I'm looking for some games with long playtime like skyrim or dark souls 3 for t? I've played Ravensword2, aralon etc but have recently seen people being able to play the actually games of dark souls and sky rim on there androids? So basically is this possible and if not are there any open world rpgs like them coming out in the near future?
Thanks in advamce

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