content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <headerData>
  <submissionType>144</submissionType>
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  <cik>0001815573</cik>
  <ccc>XXXXXXXX</ccc>
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  <liveTestFlag>LIVE</liveTestFlag>
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  <formData>
  <issuerInfo>
  <issuerCik>0001799567</issuerCik>
  <issuerName>DoubleDown Interactive Co., Ltd.</issuerName>
  <secFileNumber>001-39349</secFileNumber>
  <issuerAddress>
  <street1 xmlns="http://www.sec.gov/edgar/common">13F, GANGNAM FINANCE CENTER</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">152, TEHERAN-RO GANGNAM-GU</street2>
  <city xmlns="http://www.sec.gov/edgar/common">SEOUL</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">M5</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">06236</zipCode>
  </issuerAddress>
  <issuerContactPhone>822-501-7216</issuerContactPhone>
  <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>STIC Special Situation Diamond Ltd.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
  <relationshipsToIssuer>
  <relationshipToIssuer>10% Stockholder</relationshipToIssuer>
  </relationshipsToIssuer>
  </issuerInfo>
  <securitiesInformation>
  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share(1)</securitiesClassTitle>
  <brokerOrMarketmakerDetails>
  <name>B. Riley Securities, Inc.</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">11100 Santa Monica Blvd.</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">Suite 800</street2>
  <city xmlns="http://www.sec.gov/edgar/common">Los Angeles</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">CA</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">90025</zipCode>
  </address>
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  <noOfUnitsSold>14075</noOfUnitsSold>
  <aggregateMarketValue>2698177.5</aggregateMarketValue>
  <noOfUnitsOutstanding>2477672</noOfUnitsOutstanding>
  <approxSaleDate>03/24/2025</approxSaleDate>
  <securitiesExchangeName>NASDAQ</securitiesExchangeName>
  </securitiesInformation>
  <securitiesToBeSold>
  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share(2)</securitiesClassTitle>
  <acquiredDate>05/25/2020</acquiredDate>
  <natureOfAcquisitionTransaction>2.5% Convertible Bonds converted to Common Shares(2)</natureOfAcquisitionTransaction>
  <nameOfPersonfromWhomAcquired>Issuer: DoubleDown Interactive Co., Ltd.</nameOfPersonfromWhomAcquired>
  <isGiftTransaction>N</isGiftTransaction>
  <amountOfSecuritiesAcquired>14075</amountOfSecuritiesAcquired>
  <paymentDate>05/26/2017</paymentDate>
  <natureOfPayment>Cash(2)</natureOfPayment>
  </securitiesToBeSold>
  <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>STIC Special Situation Diamond Ltd.</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">13F, Gangnam Finance Center</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">152, Teheran-ro Gangnam-gu</street2>
  <city xmlns="http://www.sec.gov/edgar/common">Seoul</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">M5</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">06236</zipCode>
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  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>03/05/2025</saleDate>
  <amountOfSecuritiesSold>3</amountOfSecuritiesSold>
  <grossProceeds>741.07</grossProceeds>
  </securitiesSoldInPast3Months>
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  <sellerDetails>
  <name>STIC Special Situation Diamond Ltd.</name>
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  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">M5</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">06236</zipCode>
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  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>02/27/2025</saleDate>
  <amountOfSecuritiesSold>814</amountOfSecuritiesSold>
  <grossProceeds>164847.93</grossProceeds>
  </securitiesSoldInPast3Months>
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  <sellerDetails>
  <name>STIC Special Situation Diamond Ltd.</name>
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  <street1 xmlns="http://www.sec.gov/edgar/common">13F, Gangnam Finance Center</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">152, Teheran-ro Gangnam-gu</street2>
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  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">M5</stateOrCountry>
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  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>02/26/2025</saleDate>
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  <grossProceeds>85000.58</grossProceeds>
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  <name>STIC Special Situation Diamond Ltd.</name>
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  <saleDate>02/25/2025</saleDate>
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  <grossProceeds>41946.54</grossProceeds>
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  <name>STIC Special Situation Diamond Ltd.</name>
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  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>02/21/2025</saleDate>
  <amountOfSecuritiesSold>25</amountOfSecuritiesSold>
  <grossProceeds>5010</grossProceeds>
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  <saleDate>02/19/2025</saleDate>
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  <saleDate>02/18/2025</saleDate>
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  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>02/13/2025</saleDate>
  <amountOfSecuritiesSold>598</amountOfSecuritiesSold>
  <grossProceeds>121019.98</grossProceeds>
  </securitiesSoldInPast3Months>
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  <saleDate>02/07/2025</saleDate>
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  <grossProceeds>7859.7</grossProceeds>
  </securitiesSoldInPast3Months>
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  <saleDate>02/06/2025</saleDate>
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  <saleDate>02/04/2025</saleDate>
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  <grossProceeds>16621.58</grossProceeds>
  </securitiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>STIC Special Situation Diamond Ltd.</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">13F, Gangnam Finance Center</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">152, Teheran-ro Gangnam-gu</street2>
  <city xmlns="http://www.sec.gov/edgar/common">Seoul</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">M5</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">06236</zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>01/15/2025</saleDate>
  <amountOfSecuritiesSold>758</amountOfSecuritiesSold>
  <grossProceeds>160360.89</grossProceeds>
  </securitiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>STIC Special Situation Diamond Ltd.</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">13F, Gangnam Finance Center</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">152, Teheran-ro Gangnam-gu</street2>
  <city xmlns="http://www.sec.gov/edgar/common">Seoul</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">M5</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">06236</zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>01/07/2025</saleDate>
  <amountOfSecuritiesSold>75</amountOfSecuritiesSold>
  <grossProceeds>16704.63</grossProceeds>
  </securitiesSoldInPast3Months>
  <securitiesSoldInPast3Months>
  <sellerDetails>
  <name>STIC Special Situation Diamond Ltd.</name>
  <address>
  <street1 xmlns="http://www.sec.gov/edgar/common">13F, Gangnam Finance Center</street1>
  <street2 xmlns="http://www.sec.gov/edgar/common">152, Teheran-ro Gangnam-gu</street2>
  <city xmlns="http://www.sec.gov/edgar/common">Seoul</city>
  <stateOrCountry xmlns="http://www.sec.gov/edgar/common">M5</stateOrCountry>
  <zipCode xmlns="http://www.sec.gov/edgar/common">06236</zipCode>
  </address>
  </sellerDetails>
  <securitiesClassTitle>Common Shares, Par value KRW10,000 per share</securitiesClassTitle>
  <saleDate>01/06/2025</saleDate>
  <amountOfSecuritiesSold>454</amountOfSecuritiesSold>
  <grossProceeds>100017.34</grossProceeds>
  </securitiesSoldInPast3Months>
  <remarks>(1)	Up to 281,500 American Depositary Shares ("ADSs"), each representing 0.05 share of a common share for an aggregate of 14,075 common shares, are expected to be sold.  "Number of Shares Outstanding" is based on common shares outstanding as of December 31, 2024.  "Aggregate Market Value" calculated on the closing price of ADSs on March 13, 2025, which was $9.585.  The ADSs are expected to be sold between March 18, 2025 and June 17, 2025. ""Securities Sold During the Past 3 Months"" were in the form of ADSs.
  (2)	On May 26, 2017, STIC Special Situation Diamond Ltd. purchased the Issuer's 2.5% Convertible Bonds (the "Bonds") in cash.  The Bonds converted into common shares at a conversion price of KRW293,600 per common share for a total of 715,258 common shares in May and June of 2020.</remarks>
  <noticeSignature>
  <noticeDate>03/18/2025</noticeDate>
  <signature>/s/ Jin Ho Chai, Director of STIC Special Situation Diamond Ltd.</signature>
  </noticeSignature>
  </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 23392}]
text: 144
  0001815573
  XXXXXXXX
  LIVE
  0001799567
  DoubleDown Interactive Co., Ltd.
  001-39349
  13F, GANGNAM FINANCE CENTER
  152, TEHERAN-RO GANGNAM-GU
  SEOUL
  M5
  06236
  822-501-7216
  STIC Special Situation Diamond Ltd.
  10% Stockholder
  Common Shares, Par value KRW10,000 per share(1)
  B. Riley Securities, Inc.
  11100 Santa Monica Blvd.
  Suite 800
  Los Angeles
  CA
  90025
  14075
  2698177.5
  2477672
  03/24/2025
  NASDAQ
  Common Shares, Par value KRW10,000 per share(2)
  05/25/2020
  2.5% Convertible Bonds converted to Common Shares(2)
  Issuer: DoubleDown Interactive Co., Ltd.
  N
  14075
  05/26/2017
  Cash(2)
  N
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  03/05/2025
  3
  741.07
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/27/2025
  814
  164847.93
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/26/2025
  418
  85000.58
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/25/2025
  207
  41946.54
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/21/2025
  25
  5010
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/19/2025
  285
  57106.48
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/18/2025
  1583
  319351.02
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/13/2025
  598
  121019.98
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/12/2025
  337
  69611.89
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/11/2025
  1251
  270985.66
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/10/2025
  68
  14415.71
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/07/2025
  37
  7859.7
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/06/2025
  1375
  284475.19
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/05/2025
  763
  156937.94
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/04/2025
  467
  95210.6
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  02/03/2025
  539
  110240.41
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/29/2025
  95
  19387.65
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/28/2025
  80
  16203.06
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/27/2025
  92
  18764
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/24/2025
  251
  53020.73
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/23/2025
  39
  8310.4
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/21/2025
  1
  265.87
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/16/2025
  78
  16621.58
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/15/2025
  758
  160360.89
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/07/2025
  75
  16704.63
  STIC Special Situation Diamond Ltd.
  13F, Gangnam Finance Center
  152, Teheran-ro Gangnam-gu
  Seoul
  M5
  06236
  Common Shares, Par value KRW10,000 per share
  01/06/2025
  454
  100017.34
  (1)	Up to 281,500 American Depositary Shares ("ADSs"), each representing 0.05 share of a common share for an aggregate of 14,075 common shares, are expected to be sold.  "Number of Shares Outstanding" is based on common shares outstanding as of December 31, 2024.  "Aggregate Market Value" calculated on the closing price of ADSs on March 13, 2025, which was $9.585.  The ADSs are expected to be sold between March 18, 2025 and June 17, 2025. ""Securities Sold During the Past 3 Months"" were in the form of ADSs.
  (2)	On May 26, 2017, STIC Special Situation Diamond Ltd. purchased the Issuer's 2.5% Convertible Bonds (the "Bonds") in cash.  The Bonds converted into common shares at a conversion price of KRW293,600 per common share for a total of 715,258 common shares in May and June of 2020.
  03/18/2025
  /s/ Jin Ho Chai, Director of STIC Special Situation Diamond Ltd.