throughout Gielinor dangerous or inconvenient to players with lower combat levels. Player interaction Players can interact with each other through trading, chatting, or by participating in mini-games and activities, some of which are competitive or combative in nature, while others require cooperative or collaborative play. Players can trade items and gold coins with each other, either through a face-to-face trade, or by using a large automated marketplace known as the Grand Exchange. The chat system enables players to communicate with each other. Public Chat broadcasts text to players in the local area on one server, both by text appearing above the speaker's head and in the message box. Friends Chat broadcasts text in the message box only to certain players tuned into a specific channel, who can be available on any RuneScape world. Each Friends Chat channel has an owner, who can assign different ranks to individual players; players' ranks dictate their ability to perform administrative tasks within the channel. Clan Chat allows members of a clan to communicate with each other through a separate channel. Quick Chat allows players to choose from a list of predetermined messages to send as Public Chat, Clan Chat, or Friends Chat. RuneScape features independent mini-games, although most are only available to paying members. Mini-games take place in certain areas and normally involve specific in-game skills, and usually require players to cooperate or to compete with each other. Examples of these mini-games include Castle Wars, which is similar to the real-life game Capture the Flag, Pest Control, a highly combat-focused mini-game, and Fist of Guthix, where one player (the hunter) tries to stop another player (the hunted) from collecting charges into a magical stone. Quests Quests are series of tasks with a storyline that players can choose to complete. These often have requirements including minimum levels in certain skills, combat levels, quest points and/or the completion of other quests. Players receive various rewards for completion of quests, including money, unique items, access to new areas, quest points and/or increases in skill experience. Some quests require players to work together, and many require players to engage in challenging combat. Quests are grouped into categories based on requirements and difficulty. Once a player completes all quests in the game, an achievement item known as the "Quest Point Cape" can be claimed. New quests are released periodically. Development Andrew Gower developed RuneScape with the assistance of his