In a variety of online games, one of the popular is Ragnarok. Besides introducing Ragnarok 2 recently, now a mobile version of the game also available on Android Market, named as the “War of Gods”.
Ragnarok: War of Gods is seen using a Facebook account to register a support account, and so players can play it as usual. It still retains its character and original versions of various things like Ragnarok.
For Android users who are interested, you can download this game for free from Google Play Store, and play it together with other friends. For the record, it uses internet access, then you may want to connect your device to Wifi before starting the game.