If you've ever been part of the crazy community that filled the servers of Ragnarok Online on PC, you know that there's quite no game like it. Indeed, sequels and reboots of the franchise have tried to expand this MMORPG but none could really build a community like Ragnarok Online did.
Announced a while back, Ragnarok Online Mobile, an adaptation of the classic game for mobile devices, has been released in China in Open Beta form. To get it, you'll have to create an account here (follow the guide here in case you don't understand or are stuck somewhere in the process) and download the app through this link for Android or this one for iOS (You'll need a chinese App Store account, find out how to create one here).
Enjoy chasing Poring and other weird creatures!