DREADMOOR's demo technology metadata identifies Unreal Engine. A specific numbered engine release is not confirmed here, so it would be inaccurate to turn that identification into a precise Unreal Engine version.
The engine family also does not establish a particular rendering feature, performance level or hardware recommendation beyond the game's own published requirements.
What the engine identification covers
The demo and historical Playtest records identify Unreal Engine among their detected technologies. That supports the engine-family answer for those applications.
It does not establish which exact engine release a particular build uses, whether the developers modified the engine, or whether an earlier test and the final release use identical settings. “Unreal Engine” is the useful confirmed answer; a more specific version number would require additional confirmation.
The record identifies the engine family; it does not specify a numbered Unreal Engine release.
Do not turn an engine name into a settings guide
Knowing the engine does not reveal the names or behavior of DREADMOOR's graphics options. It is not enough to prescribe configuration-file edits, console commands, startup flags or a particular upscaler mode.
Those instructions would need to be verified against the actual game and version. A command that appears in a guide for another Unreal-based game is not automatically an appropriate DREADMOOR fix.
The same applies to assumptions about rendering. The engine family alone does not confirm which advanced lighting, ray-tracing or reconstruction features are exposed to the player.
Use the game's requirements for hardware planning
The current main-game requirements specify Windows 10 or higher, a 64-bit processor and operating system, DirectX 12, and 60 GB of available storage.
Minimum hardware is an Intel Core i5-8400 or AMD Ryzen 5 2600, 8 GB RAM, and an Nvidia GTX 1060 with 6 GB or AMD Radeon RX 580 with 8 GB. Recommended hardware is an Intel Core i5-12400F or Ryzen 5 5600, 16 GB RAM, and an RTX 4060 or Radeon RX 7600.
Those are application-specific requirements. They are more useful for planning than a general assumption that every game using an engine family runs alike. They still do not promise a frame rate or resolution.
Keep demo and launch builds distinct
The demo, main game and historical playtest use separate Steam applications. Technology detected in one record is not a complete specification for every release stage.
As of November 2, the main game is preparing for its November 9 Early Access launch. Future updates can change implementation details, so an exact technical claim should identify the build it describes.
For the immediate question, the supported answer remains the Unreal Engine family. Exact version, individual rendering features and measured performance need their own confirmation rather than inference from that name.