What is Build Christmas?

The store page calls it an indie simulation and strategy game with city-builder, cozy, management, automation, base-building, and decorating tags. You dress a North Pole village in lights and props. A smaller workshop layer makes presents so the sleighs can leave on Christmas Eve.

Who is behind it

Both the developer and publisher fields on Steam say Cozy Gridworks. In the pinned discussion, the developer describes the project as a solo effort. A launch note on Reddit from the same name repeats that. The studio website, cozygridworks.com, was still a Coming Soon page on 13 Nov 2026, so the Steam listing is the public home of the game.

I do not have a personal name to print. The public posts use the studio name, and I am leaving it there.

What the store discloses about AI

Steam’s generative-AI section, repeated in the developer FAQ, says artwork, icons, 3D assets, written content, and the trailer narration used generative tools during development. It also says the game does not generate AI content while it runs. I am quoting that split on purpose: production tools are one claim, runtime generation is another, and only the second one is ruled out in public text.

What this site is

These pages collect the store listing, the achievement board, the pinned FAQ, SteamDB, and the launch posts, then answer one question per page. The buy button always goes to Steam. There is no browser build to embed.

English is the only language on the store page. Platforms are Windows only. Mac and Linux requirements are empty.