Blackroom is a cancelled first-person shooter game from independent studio Night Work Games (the dark and violent subsidiary of Romero Games), founded by former id Software developers John Romero and Adrian Carmack.

The game was originally announced on April 25, 2016, alongside the launch of a Kickstarter campaign aiming to raise $700,000 over 32 days. Romero described Blackroom as "a skillful shooter, from movement to weapon and map mastery," designed in the spirit of classic arena shooters.

The development team included Romero as lead designer and programmer, Carmack as artist, and musician George Lynch of Dokken as composer. The game was targeting a winter 2018 release.

The Kickstarter campaign was cancelled on April 29, 2016, after raising over $131,000, with Romero stating that development would pause to create a working demo to better showcase the game before relaunching the campaign.

Despite claims in a 2019 interview that the project was still alive, no further public updates were released.

In his 2023 autobiography, Doom Guy: Life in First Person, Romero confirmed that a demo had been completed and shown to publishers, but the project was ultimately cancelled.