OD

Hideo Kojima conceived OD while working on Death Stranding (2019). He pitched the game to numerous publishers, all of whom rejected it because they found the concept too unconventional and difficult to understand and execute. The only publisher that was interested was Xbox Game Studios. Kojima Productions and Xbox Game Studios announced their partnership for OD at the Xbox Games Showcase in June 2022. Kojima stated that the studio was working with Xbox and its cloud gaming technology "to take on the challenge of creating a very unique, immersive, and totally new style of game—or rather, a new form of media".

In November, approximately two and a half minutes of alleged concept footage leaked online. It depicted a character from a third-person perspective, visually resembling Margaret Qualley as seen in Death Stranding, walking through dark corridors with a flashlight. The scene ended with a "Game over" message, followed by the phrase "A Hideo Kojima game", and the title Overdose. In December 2023, Kojima Productions filed a Japanese trademark for the "Social Scream System", assumed to be an asynchronous multiplayer gameplay mechanic for OD, similar to the "Social Strand System" multiplayer mechanic from Death Stranding.

T. (2014)—an interactive teaser for the video game Silent Hills, a cancelled installment in the Silent Hill series, directed and designed by Hideo Kojima in collaboration with filmmaker Guillermo del Toro. T. to him.

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