9Dragons is a free to play online game, but with micro-transactions, because on this game players may optionally purchase in-game items or currency. It was developed by GameHI and released in 2007.
The required OS for 9Dragons is Windows, and it is a game in which player characters learn martial arts to survive in the harsh lands of China.
Gameplay
9Dragons features player-versus-player and player-versus-environment gameplay depending on which map and server the player is located. If a player kills someone in a PvP area they receive Karma. The amount and type of Karma gained depends on the clans of the two combatatants. When a player collects enough Karma they receive a “Karma Epithet”.
After reaching level 25, the player can then choose a role in the clan. At level 106, the player can undergo a Role upgrade (known as 2nd role), giving them access to new skills. The roles all go by different names but they fall into 4 distinct classes:
Warrior: Warriors are the masters of their clan’s main weapon. They are the first to rush into combat, and all of their skills are centered around dealing direct damage to the opponent. They emphasize Constitution, Dexterity, and Strength, while Essence is harder for them to develop.
The Clans a player may join are based upon various schools of Kung Fu and are separated into two major factions, The White Clans (loyal to the Imperial Emperor) and The Black Clans (who have no allegiance to him). The White Clans include: Shaolin (male disciples only), Wu-Tang, and The League of Beggars. The Black Clans include: Sacred Flower (female disciples only), The Brotherhood of Thieves, and Heavenly Demon Clan. Each Clan has its own requirements for admission.
The game uses a leveling system in which each level has 12 Cheng as a of sub-level system. Each time a character receives a title change a mini-game is required to level, and extra stat and skill points awarded.
Blood Essence is a material obtained as rare drops from killing monsters or maximising the player’s Blood Count. Blood Essence can be used to refine or strengthen weapons.
Within the game are small communities known as Hero Bands. A player is required to reach Raising Light 1 (lvl 49) and complete a quest to create a band. The band can have up to 1 band master, 10 band leaders and a total of 40 members. The band master selects band leaders. Hero Leagues are alliances formed with multiple bands. Up to 5 bands in a league and they can be different (but allied) clans.
You can play this game here. Have fun!