Build Christmas PC requirements
Build Christmas requires Windows 11 64-bit. There is no Mac or Linux build. Both the minimum and recommended rows ask for 16 GB of memory.
| Minimum | Recommended | Status | |
|---|---|---|---|
| OS | Windows 11, 64-bit | Windows 11, 64-bit | Developer on Steam · 1 source |
| CPU | Intel Core Ultra 5 125U or equivalent | Intel Core i5-14400F or AMD Ryzen 5 5600X | Developer on Steam · 1 source |
| Memory | 16 GB | 16 GB | Developer on Steam · 1 source |
| GPU | DirectX 11 integrated graphics, such as Intel Graphics on Core Ultra | NVIDIA GeForce RTX 5060 8 GB or equivalent | Developer on Steam · 1 source |
| Storage | 2 GB listed | 2 GB listed | Developer on Steam · 1 source |
Storage requirement and download size
The store page and developer FAQ both ask for 2 GB available space. This is a storage requirement, not a download-size measurement. The download-size field is — because the current depot page could not be read during the 13 Nov source check.
Integrated graphics are called out in an extra note: use the Performance picture quality setting. The FAQ adds Standard, Medium, and Performance presets, plus a resolution slider from 720p to 4K. The same post says a very large village at 4K is the heaviest case, and that late-game villages lean on the processor more than the graphics card. That last claim is also on the recommended-spec note.
Deck, controller, offline
No controller support at launch. Mouse and keyboard are required. The developer had not tested Steam Deck. The game runs offline and, in the FAQ’s words, sends no telemetry. Steam Cloud does sync saves, which needs a connection when you want that sync.
If the 3D view fails at startup, the FAQ says the game offers a “Use 2D Compatibility Graphics” button. The Steam overlay is off at launch because the developer says turning it on caused severe performance problems. Screenshots until that changes are F8 photo mode.
Compare this bar with Little Noël, which lists Windows, Mac, and Linux, if the operating system is the reason you are still shopping.
Questions
Will it run on Steam Deck?
The developer says they have not tested Deck, the game needs a mouse and keyboard, and there is no controller support at launch. That is one source.
How big is the download?
The store asks for 2 GB available space. A current download-size figure is not available in the accessible source, so that separate field is left blank.
Sources
- Steam store page — Public store listing, checked 13 Nov 2026
- Developer FAQ on Steam — Pinned post by Cozy Gridworks, 13 Nov 2026
Checked 2026-11-13.