# Underworld Revisited: reimplementing Ultima Underworld in Unity

> Underworld Revisited reimplements Ultima Underworld: The Stygian Abyss (1992) in Unity. It reads the GOG or Steam copy. The checked GOG executable UW.EXE is 547,248 bytes. Windows releases are UnderworldRevisited-<version>-win64.zip and start with UR.exe. Linux releases since 0.3.0 are UnderworldRevisited-<version>-linux64.tar.gz and start with UR.x86_64. Saves use the installation folders UNDEROM1\SAVE1 through SAVE4.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/PQMarine/UnderworldRevisited>
- Primary source: <https://github.com/PQMarine/UnderworldRevisited/blob/7407116b0f99341eb2c8647322255c53a86bdf04/README.md>
- Catalog page: <https://awesomerea.org/resources/underworld-revisited/>
- Record JSON: <https://awesomerea.org/resources/underworld-revisited/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/underworld-revisited/index.md)

## Requirements & limits

- Windows 10 or newer, 64-bit, with DirectX 11, or 64-bit Linux with Vulkan or OpenGL 4. A source build uses Unity 6000.6.8f1. The launcher asks for the folder that contains game.gog or game.bin when it does not find an install.
- License: MIT. Parts derived from other projects keep the licenses in THIRD_PARTY_NOTICES.md.

## Primary sources

1. <https://github.com/PQMarine/UnderworldRevisited/blob/7407116b0f99341eb2c8647322255c53a86bdf04/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.