Game · RPG

UnderworldRevisited

An open-source reimplementation of Ultima Underworld: The Stygian Abyss (1992) in Unity, faithful to the original's rules. Fully playable. Needs the GOG or Steam version; no game data included.

Completely free
Open source
No account

Overview

Gameplay elements described in its GitHub repository: character customisation.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information

“The whole game can be played from character creation to the end, compared step by step with the original, and save games work both ways.” — GitHub, 10 November 2026

At a glance

UnderworldRevisited is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (MIT) is a permissive open source licence: use, modification and redistribution are allowed, including in commercial projects.

Strengths

Open source code
No account needed
Commercial use allowed

Sources and checks

Facts collected from GitHub (credit card, account, source code, publisher, licence, free status, platforms, commercial use) — 10 November 2026
Last technical check: 8 November 2026
Description from github.com — Dépôt GitHub PQMarine/UnderworldRevisited (MIT)

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