KR20040004328A - Method for dealing item at a on-line game and computer readable record medium on which a program therefor is recorded - Google Patents

Abstract

PURPOSE: A method for transacting an item at an on-line game and a recording medium are provided to exchange and sell items by acquiring game items, avatar items, and blog items being supplied when progressing a game and supplying cyber cache. CONSTITUTION: A main web page is transmitted to at least one user terminals which are connected through an information communication network. If member information is received in the transmitted web page, the received member information is compared with member information stored in a member DB and a log-in process is performed(S104). If a cyber cache charging request signal is inputted from the user terminal, a web page capable of charging cyber cache is supplied. If purchase information including purchase amount of money is received from the supplied web page and a payment is executed, the received money is changed into cyber cache, and the changed cyber cache is stored and managed in a cyber cache DB(S109). If a game is selected from the log-in user terminal, the selected game is progressed, one item out of a game item, an avatar item, and a blog item is supplied, and the supplied item is stored and managed in a blog of a user(gamer)(S114). If an item exchange request signal as to the supplied item is inputted from the gamer, an item of other gamer who requested an item transaction is searched from an item DB(S200). It is judged whether cyber cache of gamers who requested an item transaction exists. If cyber cache of gamers who requested an item transaction exists, an exchange commission is received from the gamers as cyber cache, and the exchange-requested item is exchanged(S402).

Description

METHOD FOR DEALING ITEM AT A ON-LINE GAME AND COMPUTER READABLE RECORD MEDIUM ON WHICH A PROGRAM THEREFOR IS RECORDED}

The present invention relates to a method of trading an item in an online game and a computer-readable recording medium recording the program. The present invention is applied to various games to obtain game items, avatar items, and blog items provided while the game is in progress. The present invention relates to a method of trading items in an online game and to a computer readable recording medium having recorded the program.

In relation to the conventional online game, a number of applications have been filed in addition to Korean Patent Publication No. 2003-0000362, "Item Trading Method and System in Online Game."

The present invention provides an online game using a network, the method comprising: displaying or selecting an avatar selected by a user who is allowed to access a game server; A second step of purchasing an essential item of the game for the avatar; A third step of purchasing or selling necessary items for the avatar; A fourth step of detecting and paying the payment and payment status for the corresponding item when the item is traded in the second or third step and storing the result; A fifth step of determining whether the avatar is owned for the specific item in a specific operation or purchase situation while the game is in progress; And a sixth step of proceeding with the game according to the presence or absence of the specific item determined in the fifth step or providing information on the required item and returning to the fourth step if a purchase request is input; Characterized in that it comprises a.

However, the method and system for selling and selling items in the online game is a method and system for buying and selling avatars. The user who accesses the game server purchases or sells the items used by the avatar using cyber money or cash only. In addition to being able to do this, there was a problem that gamers have difficulty in contacting various online games besides the game in progress.

The present invention has been made to solve the above problems, the object of which is to obtain game items, avatar items, blog items (blog) items provided during the game progress, a predetermined cyber between the trading partners for the obtained items The computer that records the item trading method and program in the online game that not only allows the exchange and sale of items after paying the cache, but also motivates the user to play other games in addition to the game in progress through the acquired game items. To provide a recording medium that can be read by.

1 is a block diagram showing an overall system for implementing an item trading method in an online game according to an embodiment of the present invention;

2 is a block diagram for explaining in detail the game item management server of FIG.

3 is a flowchart illustrating an item trading method in an online game according to an embodiment of the present invention;

4 is an operation flowchart for explaining in detail the subroutine related to the item exchange partner search of FIG.

FIG. 5 is an operation flowchart for explaining in detail the item sales related subroutine of FIG.

6 is an exemplary screen illustrating a main web page.

<Explanation of symbols for the main parts of the drawings>

10: user terminal 20: information communication network

30: game item management server

Item trading method in the online game according to an aspect of the present invention for achieving the above object, at least one user terminal is connected to the game item management server through the information communication network, the game item management server is a member DB, An item transaction method in an online game including a cyber cache DB, a game DB, and an item DB, the method comprising: (a) transmitting a main webpage to at least one user terminal that has made a communication connection through the information communication network, If the member information is input in the page, comparing the input member information with the member information stored in the member DB to log in; (b) if a cyber cache charge request signal is input from the user terminal where the login is performed through the step (a), provide a web page for charging the cyber cache, and purchase information including a purchase amount in the provided web page If the payment is made by receiving the input, converting the received purchase amount into a cyber cache to store and manage the converted cyber cache in the cyber cache DB; (c) assisting the selected game to proceed when a game is selected from the user terminal in which the login is performed through the step (a), and providing one item of a game item, an avatar item, or a blog item during the game; Assisting to store and manage the provided items in the gamer's blog; (d) if an item exchange request signal is input from the gamer with respect to the item provided through step (c), retrieving from the item DB the item of another gamer who has requested a transaction with the item for which the exchange is requested; And (e) if another gamer requesting item exchange is found through step (d), it is determined whether there is a cyber cache of gamers requesting item exchange, and if there is a cyber cache of gamers, a predetermined exchange fee is converted into the cyber cache of gamers. After receiving the payment characterized in that it comprises the step of being replaced with the requested item.

Preferably, the purchase information received in step (b) is characterized in that it includes cash, mobile phone, credit card, payment means such as 700/800, the buyer's name, social security number, password and the like.

More preferably, in the step (d), if an item sale request signal is input from the gamer to the item provided through the step (d), the item requested for sale is set to be lower than the sale price. After that, it characterized in that it comprises the step of supporting the sale of the item in accordance with the purchase request signal of the other gamers.

The computer-readable recording medium which records the item trading program in the online game according to another aspect of the present invention, at least to establish (A) a communication connection through the information communication network to perform item trading in the online game. Transmitting a main web page to one user terminal, and when receiving member information from the transmitted web page, comparing the received member information with the member information stored in the member DB to perform login; (B) providing a web page for charging the cyber cache when a cyber cache charge request signal is input from the user terminal that has logged in through the process (A), and purchasing information including a purchase amount in the provided web page; When the payment is made by receiving the input, the process of converting the received purchase amount into a cyber cache to store and manage the converted cyber cache in the cyber cache DB; (C) assisting the selected game to proceed when a game is selected from the user terminal where the login is performed through the process (A), and providing one item of a game item, an avatar item, or a blog item during the game; A process for assisting in storing and managing the provided items in the gamer's blog; (D) a process of searching for an item of another gamer requesting a transaction with an item for which an exchange is requested, from an item DB, when an item exchange request signal is input from a gamer for an item provided through the process (C); And (E) if another gamer requesting item exchange is found through the process (D), it is determined whether there is a cyber cache of gamers requesting item exchange, and if a cyber cache of gamers exists, a predetermined exchange fee is transferred to the gamers' cyber cache. After receiving the payment is characterized in that it comprises a process to be replaced with the requested item.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following, the present invention will be described as a preferred embodiment of a method of trading items and a computer-readable recording medium recording the program in an online game, but the technical idea of the present invention is not limited to this and modified by those skilled in the art. Of course, it can be variously implemented.

An item trading method in an online game according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5 as follows.

1 is a block diagram showing an overall system for implementing an item trading method in an online game according to an embodiment of the present invention, Figure 2 is a block diagram for explaining in detail the game item management server of FIG. FIG. 3 is a flowchart illustrating an item trading method in an online game according to an embodiment of the present invention. FIG. 4 is a flowchart illustrating an item exchange counterpart search related subroutine of FIG. 3 in detail. FIG. 3 is an operation flowchart for describing the item sales related subroutine of FIG. 3 in detail.

First, Figure 1 shows a system for implementing an item trading method in an online game according to an embodiment of the present invention.

As shown in the figure, the system includes a user terminal 10 that is a requester of information, a game item management server 30 that is a provider of information, and the user terminal 10 and the game item management server 30. It includes an information communication network 20 for interfacing wired and wireless.

The user terminal 10 is a computer device capable of communication and has an Internet browser capable of displaying web contents. The user terminal 10 may be a mobile phone or PDA (Personal Digital Assistant) capable of wireless Internet communication as well as a personal computer such as a desktop computer or a notebook computer. ), IMT2000, and the like, and the personal computer preferably includes at least a Windows 98 operating system, a Pentium class CPU, a 64 Mb memory, and the like. In the present embodiment, the user terminal 10 is limited to the case of a personal computer, but the present invention is not limited thereto.

The information communication network 20 includes an Internet network, an internal network, and the like using a TCP / IP protocol that can be wired and a WAP protocol that can be wirelessly connected. Here, the user terminal 10 is connected via the information communication network 20 (for example, the Internet network).

The game item management server 30 is a large-scale computer system including a central processing unit, a RAM, a ROM, a network interface, a data storage device, and the like. Traditional personal computers or workstations with significant amounts of memory and processing power can be used as server computers.

In addition, the game item management server 30 can perform a large amount of business processing by executing a huge amount of mathematical calculations in information processing or database search. Pentium microprocessors, mainly from Intel, can be used as central processing units.

The game item management server 30 supports the selected game to be progressed when the game is selected from the main webpage transmitted to the user terminal 10 which has made a communication connection through the information communication network 20, while the game is in progress. When providing any one item among game item, avatar item, and blog item, the item is acquired and applied to the game in the case of an item applicable to the game, and the game progresses, and the acquired item is exchanged for other kinds of items. And to support sales. At this time, when requesting the item exchange, the exchange gamers receive a predetermined exchange fee as cyber cash, and when requesting the item sale, the cyber cache of the established selling price is paid to the game requester.

Here, the game item management server 30 is a member DB (38) for storing the member registration information received in response to the member registration request signal from the user terminal 10 made a communication connection through the information communication network 20, Cyber Cash DB 39, which stores cyber cash and credit card, mobile phone, and 700/800 payment means that correspond to membership information, and various game types (for example, puzzle bubble) , A game DB 40 that stores (eg, a gallag, a driller, a penguin, a gostop, a poker, etc.) and an item DB 41 that stores game items, avatar items, and blog items requested for sale and exchange. .

The game item management server 30 provides a blog in which at least one item is stored according to an exchange request signal for an item input from a user terminal 10 which has made a communication connection through the information communication network 20, When the item to be exchanged is inputted from the provided blog, the item DB 41 searches for whether there is an item exchange of another gamer matching the received item, and if there is a search result, the cyber of the gamers who requested a predetermined exchange fee is exchanged. After receiving cash, the item can be exchanged.

For example, when a user acquires a puzzle bubble game-related functional item during a puzzle bubble game, the game is applied to the game by applying the obtained item to the game.

However, when a game item is acquired while a puzzle bubble game is in progress, a request for exchange of the acquired game item with other gamers is performed, and if an item found by searching for an item of another gamer who has requested a transaction with the exchange requested item exists, Item exchange is performed after a predetermined cyber cash (for example, 100 won) is paid from gamers who request exchange.

In addition, when a driller item is acquired during a puzzle bubble game, the item is stored in a blog when the exchanged item is not exchanged or sold.

In addition, when a penguin bubble warfare item was acquired during the bubbling bubble game, and the user wants to sell the acquired item, the acquired item is set lower than the sale price and then posted from the other gamers (for example, penguin warship gamers). When an item purchase request signal is input, the user can purchase the desired item at a low price.

Hereinafter, the functional configuration of the above-described game item management server 30 will be described in detail.

As shown in Figure 2, the game item management server 30 is a member information management module 31, cyber cash management module 32, game progress module 33, item providing module 34, item transaction brokerage Module 35, blog management module 36, cyber cash payment module 37, member DB 38, cyber cash DB 39, game DB 40, item DB 41, and the like.

The member information management module 31 receives a member request signal from a main web page transmitted from the user terminal 10 that has made a communication connection through the information communication network 20, and responds to the input request signal. The member DB (38) is transmitted using the member registration information (for example, ID, PASSWORD, name, address, social security number, address, interest, nickname, etc.) transmitted through the web page. Build and manage).

The cyber cache management module 32 pays a predetermined cyber cache when a member registration is made in accordance with a member registration request from the user terminal 10 which has made a communication connection through the information communication network 20, and the paid cyber cache It stores and manages the member information (for example, ID) in the cyber cache DB (39).

Here, the cyber cash is a currency unit used to pay a fee for exchanging and selling game items, avatar items, and blog items.

In addition, when the cyber cache is insufficient, the cyber cache management module 32 transmits a web page capable of charging the cyber cache when a cyber cache charge request signal is input from the user terminal 10, and the transmitted web Through the page input purchase information including the purchase amount (for example, payment method such as cash, mobile phone, credit card, 700/800, buyer's name, social security number, password, etc.) when the payment is completed and received the input The purchase price is converted into a cyber cache to store and manage the converted cyber cache in the cyber cache DB (39).

The game progress module 33 supports the selected game to proceed smoothly when a game (for example, a puzzle bubble) is selected from the user terminal 10 that has made a communication connection through the information communication network 20. In this case, the game includes not only puzzle bubbles, but also various types of games such as gallag, drillers, penguins, hits, gostops, and poker.

The item providing module 34 provides a gamer with at least one item of a functional game item, another game item, an avatar item, or a blog item related to the puzzle bubble game while the puzzle bubble game is in progress, and selecting and obtaining the provided item. If you do, it will be saved to your blog. At this time, if the gamer is a functional game item related to the puzzle bubble game, the game is applied to the game, but if another item is obtained, the gamer requests to exchange or sell the acquired item.

When the item transaction intermediation module 35 intends to exchange or sell the items provided to the gamers through the item providing module 34, the item trading intermediary module 35 may be provided to the item exchange requester or the item purchase requester.

In more detail, when the item transaction brokerage module 35 receives an item to be exchanged from the blog after the item exchange request signal is input from the gamer, it is determined whether there is an item of another gamer who requested to exchange the received item. When there is an item found by searching from the item DB 41, the item exchange is performed between gamers who request the exchange. In this case, the fee according to the item exchange is the item is exchanged after payment is made by cyber cash.

In addition, the item transaction brokerage module 35, if an item to be sold is input from a blog after an item sale request signal is input from the gamer, the sales item is set to be lower than that of the received item and then posted from another gamer. When an item purchase request signal is input, the sale of the item requested to be purchased is made. In this case, another gamer may directly request the purchase of the item or input the purchase request information of the item so that the sale may be made when the sale of the input requested purchase item is requested.

In this case, the seller who requested the sale of the item is paid with the cyber cache.

The blog management module 36 not only stores and manages items provided through the item providing module 34 in the gamer's blog, but also provides items stored in the blog according to the gamer's request.

The cyber cash payment module 37 is a cyber that is stored in the cyber cache DB 39 of the gamers requesting a transaction fee according to the item exchange before the item exchange is made through the item transaction brokerage module 35. Make sure you pay by cash. In this case, when the cyber cache stored in the cyber cache DB 39 is insufficient, the exchange fee is charged through the charging process and then payment is made.

In addition, the cyber cash payment module 37 is to sell the item through the item transaction brokerage module 35, so that the sale price of the item from the buyer to the cyber cash. At this time, the cyber cash paid from the buyer is paid to the seller as a cyber cash.

Now, referring to FIG. 3, a method of trading an item in an online game according to an embodiment of the present invention, the game item management server 30 communicates with a plurality of user terminals 10 through an information communication network 20. Make a connection (S100).

The game item management server 30 transmits the main web page as shown in FIG. 6 to the user terminal 10 which has made a communication connection through the information communication network 20 (S102).

Thereafter, the game item management server 30 receives member information (eg, ID and password) from the transmitted main webpage, and determines whether the received member information is stored in the member DB 38. The login process is performed (S104). At this time, the first gamers should be registered according to the membership registration procedure, but since the membership registration procedure is the same as the conventional description thereof will be omitted.

The game item management server 30 determines whether the cyber cache charge request signal is input from the gamer who has performed the login process (S106).

As a result of the determination in step S106, when the cyber cache charge request signal is input from the gamer, the game item management server 30 provides a web page for charging the cyber cache, and provides cash and credit in the provided web page. The payment information including the purchase amount is input to a payment method such as a card, a mobile phone, or 700/800 (S107).

The game item management server 30 converts the paid purchase amount into a cyber cache when the payment is made for the received purchase amount, and stores and manages the converted cyber cache in the cyber cache DB 39 (S109). ). The process then moves to step S108 described below.

As a result of the determination in step S106, when the cyber cache charge request signal is not input from the gamer, the game item management server 30 determines whether a game selection request signal is input from the gamer (S108).

As a result of the determination in step S108, if no game is selected from the gamer, the process ends.

As a result of the determination in step S108, when a game is selected from the gamer, the game item management server 30 supports the selected game to proceed (S110).

The game item management server 30 provides one item of a game item, an avatar item, and a blog item during the game (S112). In this case, such an item may be provided when a predetermined time elapses or reaches a predetermined score after the start of the game, or may be provided at random during the game.

Then, when the click button is input from the gamer to the provided item, the game item management server 30 acquires the provided item according to the input button, so that the obtained item is stored and managed in the gamer's blog. (S114).

Thereafter, the game item management server 30 determines whether an exchange / sale request signal for the obtained item is input (S116).

As a result of the determination in step S116, when the exchange / sales request signal for the item obtained from the gamer is not input, that is, when the acquired item is a functional game item that can be used while the game is in progress, the acquired item is added to the gamer's request. Therefore, it is applied to the game to support the game progress.

As a result of the determination in step S116, when an exchange request signal for an item obtained from a gamer is input, the game item management server 30 selects the exchange request item from a blog, and requests a transaction with an exchange request item. An item exchange partner search-related subroutine for searching for an item exchange partner by searching for the item of the gamer from the item DB 41 is performed (S200 of FIG. 3).

Referring to FIG. 4, the item exchange counterpart search related subroutine (S200) will be described. The game item management server 30 may respond to an exchange request signal for an item obtained from a gamer. It provides (S201).

Then, the game item management server 30 receives the item to be exchanged in the provided blog from the gamer (S203).

Thereafter, the game item management server 30 searches the item DB 41 for whether there is an item of another gamer that matches the exchange item received from the blog (S205). That is, when a gamer acquires a gallag item and requests an exchange with a driller item, another gamer searches for whether there is a matching item between gamers when the gamer obtains a driller item and requests an exchange with the gallag item.

The game item management server 30 determines whether there is an item of another gamer that matches the item requested for exchange, that is, a searched item (S207). As a result of the determination in step S207, if there is no searched item, the process ends.

As a result of the determination in step S207, if the searched item exists, the game item management server 30 determines whether the cyber cash of the item exchange gamers exist (S400).

As a result of the determination in step S400, when there is no cyber cache of item exchange gamers, the game item management server 30 transmits a message indicating that the cyber cache is insufficient to the item exchange gamers without the cyber cache (S401). ).

Since the process moves to the above-mentioned step S106 and the charge request of the cyber cache is input, the process of charging the cyber cache is made through the step S109 to the step S109 described above and then moved to the step S402 to be described later, so that the item is exchanged. do. At this time, the item is not exchanged if the cyber cache is insufficient and the cyber cache is not charged.

As a result of the determination in step S400, if there is a cyber cash of the item exchange gamers, a predetermined exchange fee is paid from the cyber cache of the item exchange gamers, and the exchange request is provided to the blog of the exchange gamers (S402). At this time, the balance after the exchange fee is paid out of the cyber cache stored in the cyber cache DB (39) is displayed.

As a result of the determination in step S116, when a sale request signal for an item obtained from a gamer is input, the game item management server 30 selects a sale request item from a blog, sets the selected item to be lower than the sale price, and publishes it. Then, when a purchase request signal is input from another gamer, an item selling related subroutine is performed to make the item sold (S300 of FIG. 3).

Referring to FIG. 5, the item sale related subroutine (S300), the game item management server 30 provides a blog in which items are stored in response to an item sale request signal input from the gamer (S301). ).

Then, the game item management server 30 receives the item to be sold in the provided blog from the gamer (S303), and sets the received item to be lower than the selling price so as to be posted (S305).

Thereafter, the game item management server 30 determines whether a purchase request signal for the item requested for sale is input (S307).

As a result of the determination in step S307, if a purchase request signal for the item requested for sale is not input, the standby state is maintained for a predetermined time.

As a result of the determination in step S307, when a purchase request signal for the item requested for sale is input, the game item management server 30 provides a web page for inputting purchase information in response to the input request signal ( S309).

Then, the game item management server 30 receives the purchase information (for example, payment amount, payment method, name, social security number, telephone number, etc.) from the gamers who make a purchase request on the provided web page (S311).

After that, when payment for the received purchase information is made, the game item management server 30 provides a game requesting item to a gamer requesting a purchase, and a cyber cash of a low price is provided to the gamer requesting a sale. (S313).

By doing so, not only the items provided during the game can be obtained and conveniently managed in the blog, but also the exchange or sale of the obtained items can be easily performed.

The present invention can be embodied as computer readable codes on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also include those implemented in the form of carrier waves such as transmission over the Internet. . The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

The present invention is not limited to the embodiments described above, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the present invention as defined in the appended claims.

As described above, the present invention has an effect of conveniently managing items by storing items acquired by acquiring a game item, an avatar item, and a blog item provided during a game in a blog.

In addition, the present invention is provided with various kinds of game items, there is an effect that can be motivated to encounter a lot of other games.

In addition, the present invention has the effect that the item can not be applied to the game, avatar items, blog items exchanged with other gamers' items for a predetermined fee after paying a predetermined fee can use the exchanged items.

In addition, in the present invention, when a sale is requested for an item, the requested item is set to be lower than the sale price, so that the sale can be made, but the buyer can purchase the item cheaply, and the seller can purchase another item from the cyber. There is an effect that can be used as a cache.

Claims (4)

At least one user terminal 10 is connected to the game item management server 30 through the information communication network 20, the game item management server is a member DB (38), cyber cash DB (39), game DB ( 40) and an item trading method in an online game including the item DB 41, (a) transmitting the main webpage to at least one user terminal which has made a communication connection through the information communication network, and when receiving the member information from the transmitted webpage, comparing the received member information with the member information stored in the member DB; Allowing login to be performed (S104); (b) providing a web page for charging the cyber cache when the cyber cache charge request signal is input from the user terminal where the login is performed through the step (a), and purchasing information including the purchase price in the provided web page; If the payment is made by receiving the input, converting the received purchase amount into a cyber cache to store and manage the converted cyber cache in the cyber cache DB (S109); (c) assisting the selected game to proceed when a game is selected from the user terminal in which the login is performed through the step (a), and providing one item of a game item, an avatar item, or a blog item during the game; Assisting to store and manage the provided item in the gamer's blog (S114); (d) if an item exchange request signal is input from the gamer with respect to the item provided through the step (c), retrieving an item DB of another gamer requesting a transaction with the item requested for exchange from the item DB (S200); And (e) If another gamer requesting item exchange is found through step (d), it is determined whether there is a cyber cache of gamers requesting item exchange, and a predetermined exchange fee is paid to the gamers cyber cache if there is a cyber cache of gamers. Item exchange method in the online game, characterized in that it comprises a step (S402) to be exchanged for the item requested for exchange after receiving. According to claim 1, wherein the purchase information received in step (b), Cash, mobile phone, credit card, payment method such as 700/800, the buyer's name, social security number, password, etc. The method of trading an item in an online game comprising a. The method of claim 1, wherein step (d) (d-1) When an item selling request signal is input from the gamer to the item provided through the step (c), the selling request item is set to be lower than the selling price, and the item is sold according to the purchase request signal of another gamer. Item trading method in the online game, characterized in that it comprises a step (S300) to support the sale is made. In order to perform item trading in online games, (A) transmitting the main web page to at least one user terminal which has made a communication connection through the information communication network, and when the member information is received from the transmitted web page, the received member information is compared with the member information stored in the member DB. A process for causing login to occur; (B) providing a web page for charging the cyber cache when a cyber cache charge request signal is input from the user terminal that has logged in through the process (A), and purchasing information including a purchase amount in the provided web page; When the payment is made by receiving the input, the process of converting the received purchase amount into a cyber cache to store and manage the converted cyber cache in the cyber cache DB; (C) assisting the selected game to proceed when a game is selected from the user terminal where the login is performed through the process (A), and providing one item of a game item, an avatar item, or a blog item during the game; A process for assisting in storing and managing the provided items in the gamer's blog; (D) a process of searching for an item of another gamer requesting a transaction with an item for which an exchange is requested, from an item DB, when an item exchange request signal is input from a gamer for an item provided through the process (C); And (E) When another gamer requesting item exchange is found through the process (D), it is determined whether there is a cyber cache of gamers requesting item exchange, and if a cyber cache of gamers exists, a predetermined exchange fee is paid to the gamers' cyber cache. A computer-readable recording medium having recorded thereon an item trading program in an online game, comprising: a process of exchanging an item requested for exchange after receiving it.