Square Enix has just announced that its mobile RPG, Mobius Final Fantasy, will be playable on Steam globally this coming 6 February 2017. It was already released on Steam Japan as it boasts its 4k Resolution capability on the Steam version. With the hype of FFVII Remake going on in the game, it would be best experienced on a bigger and better resolution as we wait for the content to be released in the global version.
If the PC version does not interest you, know that Mobius Final Fantasy is available on both Android and iOS. However do note that the PC version can sync with your Android or iOS as well. All you have to do is save the file and share it with Steam.