Exhibit 99.1 DoubleDown Interactive Reports Fourth Quarter and Full Year 2023 Financial Results SEATTLE, WASHINGTON – February 13, 2024 — DoubleDown Interactive Co., Ltd. (NASDAQ: DDI) ("DoubleDown" or the "Company"), a leading developer and publisher of digital games on mobile and web-based platforms, today announced its unaudited financial results for the fourth quarter and year ended December 31, 2023. The Company's consolidated financial results for the three- and twelve-month periods ended December 31, ...