UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of August, 2022

Commission File Number 001-39349

DoubleDown Interactive Co., Ltd.

(Exact name of registrant as specified in its charter)

Joseph A. Sigrist, Chief Financial Officer

c/o DoubleDown Interactive, LLC

605 5^th Avenue, Suite 300

Seattle, WA 98104

+1-206-408-4545

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.  ☒ Form 20-F   ☐ Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

Issuance of Press Release

On August 16, 2022, DoubleDown Interactive Co., Ltd. (the “Company”) issued a press release announcing the celebration of the 12-year anniversary of the launch of its flagship title, DoubleDown Casino.

The press release is being furnished in this report on Form 6-K as Exhibit 99.1 pursuant to General Instruction B to the Form 6-K, and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.

EXHIBIT INDEX

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Exhibit 99.1

DoubleDown Interactive Celebrates 12 Years of DoubleDown Casino

SEATTLE, WASHINGTON – August 16, 2022 — DoubleDown Interactive (NASDAQ: DDI) (“DoubleDown” or the “Company”), the developer behind the popular social casino game, DoubleDown Casino, celebrates 12 years since the launch of their flagship title.

“DoubleDown Casino was one of the first games of its kind when it debuted in 2010,” said In Keuk Kim, CEO of DoubleDown, “We are honored that DoubleDown Casino has remained one of the leading games in the social casino space for the past 12 years, and we are grateful to all our passionate players, to whom we owe our long-standing success.”

This milestone celebration started on August 14, 2022 with a countdown that gives away free prizes, leading up to the DoubleDown Birthday Bash on August 26 and 27, 2022. During the event, players are encouraged to complete slot quests and will earn a reward based on how many slot quests they complete.

DoubleDown Casino offers a variety of slot machines and table games, delivering the fun of Las Vegas casinos virtually on mobile and desktop platforms. This social casino game proudly features authentic Las Vegas slot machines developed by International Game Technology PLC, or IGT. Between casino titles and exclusive original slots, DoubleDown has a catalog of over 200 slots for players to enjoy.

Follow the latest activity on our social media pages:

Facebook: https://www.facebook.com/doubledowncasino

Twitter: https://twitter.com/doubledwncasino

Instagram: https://www.instagram.com/doubledowncasino

About DoubleDown

DoubleDown Interactive Co., Ltd. is a leading developer and publisher of digital games on mobile and web-based platforms. We are the creators of multi-format interactive entertainment experiences for casual players, bringing authentic Vegas entertainment to players around the world through an online social casino experience. Our flagship title, DoubleDown Casino, has been a fan-favorite game on leading social and mobile platforms for years, entertaining millions of players worldwide with a lineup of classic and modern games.

Safe Harbor Statement

Certain statements contained in this press release are “forward-looking statements” about future events and expectations. Forward-looking statements are based on our beliefs, assumptions, and expectations of industry trends, our future financial and operating performance, and our growth plans, taking into account the information currently available to us. These statements are not statements of historic fact. We have based these forward-looking statements on our current expectations and assumptions about future events. While our management considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory and other risks, contingencies and uncertainties, most of which are difficult to predict and many of which are beyond our control. Therefore, you should not place undue reliance on such statements. Words such as “anticipates,” believes,” “continues,” “estimates,” “expects,” “goal,” “objectives,” “intends,” “may,” “opportunity,” “plans,” potential,” “near-term,” long-term,” “projections,” “assumptions,” “projects,” “guidance,” “forecasts,” “outlook,” “target,” “trends,” “should,” “could,” “would,” “will,” and similar expressions are intended to identify such forward-looking statements. We qualify any forward-looking statements entirely by these cautionary factors. We assume no obligation to update or revise any forward-looking statements for any reason or to update the reasons actual results could differ materially from those anticipated in these forward-looking statements, even if new information becomes available in the future. The information contained in, or that can be accessed through, our social media pages is not incorporated by reference into, and is not a part of, this press release. We have included our social medial pages in this press release solely for informational purposes.

Company Contact:

Joe Sigrist

ir@doubledown.com

+1 (206) 408-7545

Chief Financial Officer

https://www.doubledowninteractive.com

Investor Relations Contact:

Cody Slach or Jeff Grampp, CFA

Gateway Group

1-949-574-3860

DDI@gatewayir.com