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Selasa, 26 Juni 2007

Online games and e-business: architecture for integrating business models and services into online games

by C.E. Sharp, M. Rowe

Online games are the future of the interactive entertainment industry. The idea of integrating business services into online games holds a number of exciting possibilities for new business models, new markets, and new growth. We describe an architecture, Business Integration for Games, and an implementation prototype, for integrating online games with business services. We also describe a demonstration system that embeds our prototype into the popular first-person-shooter game Quake II[TM].

INTRODUCTION

Online games, which give the player the ability to compete against other players over a network, emerged seriously in the mid-90s. This rapidly evolved from a novelty feature to an expected function by players, and game designers adopted this approach to build multiplayer (MP) and massively multiplayer (MMP) genres of games.

A key difference between these genres is scale, and with it, the associated infrastructure to support it. The MP games confine the number of concurrent players in a single game to somewhere between 16 and 32. Usually, the game can be played either stand-alone or in multiplayer-network mode, and one of the players' machines acts as the server. The game session is relatively short-lived (minutes to hours). If the server crashes, the game is, at worst, over or, at best, severely disrupted. The MMP games, though, are a very different affair. The most popular MMP games today have subscription bases in the millions, with hundreds of thousands of players online at any one time, spread over hundreds of servers. The shared game session lasts indefinitely. This requires a much more stable environment; thus, these games have to run on dedicated servers equipped with a persistent database. Network bandwidth to support the game-related traffic is also required, and all this obviously has an associated cost.

These two different genres and their associated infrastructure requirements and costs spawned two different approaches to sustained revenue generation. The first one, mostly associated with the MP games, is based on the provision of a portal to act as a hosting and matchmaking Web site for players of these games. The portal site offers either a free membership to players and generates revenue through online advertising or a premium membership, free from advertising. The members gain access to services for locating other players and games, league tables and high scores, patches and add-ons, and use of the portal's dedicated server machines for playing games. An example of such a portal is GameSpy.com, (1) which maintains a subscription-based membership and provides an aggregation point for a variety of games that run on a variety of platforms. Some game publishers run their own portal sites with free membership, dedicated to hosting their own games and ensuring a quality experience for the community of players. The downside from the player's perspective is that these sites are limited to the products of the publisher. An example of a publisher portal site is Battle.net, (2) dedicated to games from Blizzard Entertainment.

The second business model, associated with the MMP games, is based on subscriptions that include a persistent presence in the game environment. For typically ten to fifteen U.S. dollars per month, a player has access to a game character that may be developed over time to accrue additional features for a more enjoyable game experience. The reasons players continue to subscribe include a strong community spirit, exciting game experiences, and an ever-increasing investment of time and money in the game character--if you stop paying for your subscription then your character (and all the experience and wealth gained) is lost. It is not uncommon for the subscription to be continually renewed while the account is dormant.

These games belong to the role-playing game category, and are often referred to as MMORPGs (massively multiplayer online role-playing games). Game characters are often involved in adventure and exploration jointly with other players, and aim to achieve some objective and gain rewards. The more rewards gained, the more powerful the character. Virtually all of these games have some kind of embedded trading mechanism that allows players to exchange wealth among them in the game world. For instance, in one of the most popular MMP games, EverQuest ** (3) from Sony Online Entertainment Inc., players assume the roles of pseudo-medieval fantasy heroes, gaining magic and gold in a land of dragons and wizards. Players are able to buy and sell their virtual property in exchange for virtual wealth, but this virtual economy is confined to the game world and is not a means by which the game service provider makes any of its revenue. Trading virtual wealth in the game world, however, has spawned a third business model that is now emerging.

From the earliest use of MMPs (Ultima Online ** (4), EverQuest, Asheron's Call ** (5)), the players in the community have recognized a gap in the market. Whereas some players are unable to devote the time, or lack the skill, to develop powerful characters and gain access to the more enjoyable game experiences, they are willing to pay real money (above and beyond the subscription fee) in order to acquire this virtual property. Thus, a real economy has emerged in which artifacts of the game world, such as magical items, weapons, or even whole characters, are bought and sold for real-world money. The means by which these transactions occur are often through an external medium, such as an online auction site like eBay. (6) The game service providers have historically frowned upon this practice, claiming that it is they who own the intellectual property rights to the items being traded, not the players, and that the trade is therefore illegal. But despite various attempts to prevent it, the practice is now an acknowledged side effect of the MMP game genre, and some newer MMP releases have attempted to build this into their design from the outset by providing auction functions and the ability to exchange real-world currency for virtual in-game currency. The open market, however, is a strong force, and this has not really deterred players from continuing to use external auctions and payment services.

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