-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 JRCxNdr04VhGD/i9h9hjnhRcov504KUYlW1OaGrKoe2+U5kh1vaEWI9hwSf65vaw
 1UXtktmt9A/ZPReMm6FbFw==

<SEC-DOCUMENT>0001213168-08-000043.txt : 20080516
<SEC-HEADER>0001213168-08-000043.hdr.sgml : 20080516
<ACCEPTANCE-DATETIME>20080516171820
ACCESSION NUMBER:		0001213168-08-000043
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080509
FILED AS OF DATE:		20080516
DATE AS OF CHANGE:		20080516

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTERNATIONAL GAME TECHNOLOGY
		CENTRAL INDEX KEY:			0000353944
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS MANUFACTURING INDUSTRIES [3990]
		IRS NUMBER:				880173041
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		9295 PROTOTYPE DRIVE
		STREET 2:		P O BOX 10580
		CITY:			RENO
		STATE:			NV
		ZIP:			89510
		BUSINESS PHONE:		7754487777

	MAIL ADDRESS:	
		STREET 1:		9295 PROTOTYPE DRIVE
		CITY:			RENO
		STATE:			NV
		ZIP:			89511

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MATTHEWS THOMAS J
		CENTRAL INDEX KEY:			0001076452

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10684
		FILM NUMBER:		08843249

	MAIL ADDRESS:	
		STREET 1:		9295 PROTOTYPE DRIVE
		CITY:			RENO
		STATE:			NV
		ZIP:			89512
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2008-05-09</periodOfReport>

    <dateOfOriginalSubmission>2008-05-13</dateOfOriginalSubmission>

    <issuer>
        <issuerCik>0000353944</issuerCik>
        <issuerName>INTERNATIONAL GAME TECHNOLOGY</issuerName>
        <issuerTradingSymbol>IGT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001076452</rptOwnerCik>
            <rptOwnerName>MATTHEWS THOMAS J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9295 PROTOTYPE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RENO</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89521</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option [right to buy]</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>44.18</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-05-09</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>276100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2008-11-12</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2018-05-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>276100</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>276100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Employee Stock Option (right to buy) granted pursuant to the IGT 2002 Stock Incentive Plan.  This amended report is being filed to correctly report the exercise price of the stock option granted to Mr. Matthews, as the exercise price was greater than the closing market price of IGT's common stock on the date of grant of the award (the price previously reported).</footnote>
        <footnote id="F2">The option becomes exercisable in equal installments at a rate of 25% of the shares on each of November 12, 2008, November 12, 2009, November 12, 2010 and November 12, 2011.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Virginia Williams, Attorney-In-Fact for Thomas J. Matthews</signatureName>
        <signatureDate>2008-05-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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