Scarlet Blade is a mature free-to-play traditional 3D MMORPG published by Aeria Games in the USA. Only woman characters can be played in this game, and the theme of nudity is very strong. The game has a cash shop, but content-wise no purchase is needed to enjoy everything the game has to offer. It was released in the summer of 2013.
There are 2 factions to choose from, and they are at war with each other. They are the Royal Guards and the Free Knights. The game itself features pretty standard Korean grindy PvE with some "kill ten rats" style quests and some higher level dungeons. This game, unlike most other MMOs, doesn't even try to bring anything new to the table; it just copies the more popular parts of other MMOs and coats it with heavy nudity and cyberpunk graphics.
The game received quite bad marks on reviews, as it is dubbed "a terribly bad MMO with nothing new" and it only focuses on having over sexualized woman characters. There are much better choices than this if you’re looking for a solid MMO to play.