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An early PC port of Ultima Underworld based on its Pocket PC version, with mouse look and a fullscreen HUD option. Supply your own original game data.
Before you start
- Platform
- Windows x86-64 / Linux x86-64 / macOS Apple silicon
- How to start
- Download
- Game files
- Bring game files
File requirements
Provide legally obtained Ultima Underworld DOS or WinCE data. Point the executable at your extracted data folder; the port does not replace the original asset requirement.
Based on public documentation; full builds and playthroughs have not been tested. Project documentation 
What it recreates
Reworks the Pocket PC / WinCE version of Ultima Underworld into a native desktop program, retaining its 32-bit engine and software-rendering approach.
What’s different
Adds a mouse-look toggle, a fullscreen view that hides most of the HUD, and an in-game debug/options panel.
What you can use today
v0.5.1 has Windows x86-64, Linux x86-64 and macOS arm64 downloads; CMake/Clang/SDL2 or Zig build steps are documented. The author reports testing through level one only; broader testing is ongoing. v0.5.1 is titled Alpha despite GitHub marking prerelease=false, and its release notes say the platform packages still need testing. No project-wide reuse license was found. RemakeList has not built, installed or played it.
Sources & notesSources checked:
Official README supplies original-data requirements, build steps and a running-game screenshot; v0.5.1 lists Windows, Linux and Apple silicon macOS archives. The root directory and README do not establish a project-level reuse license.
Source Project documentation Author documentation, requirements and screenshots · Official releases and attached files Sources checked: 2026-10-28 · Based on public documentation; full builds and playthroughs have not been tested.