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Dhewm 3

Dhewm 3 is a Doom 3 GPL source port.

  • Completely free
  • Windows, macOS and Linux
  • Open source

Overview

Gameplay elements described in its GitHub repository and on its official website: mod support.

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
  • “see the Mods page for more information.” — official website, 10 November 2026

At a glance

Dhewm 3 is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

About

Dhewm 3 is a source port of the original Doom 3 (not Doom 3 BFG, for that you may want to try RBDoom3BFG). It's known to work on Windows, Linux, macOS, FreeBSD, OpenBSD and AROS, but it should work on (or be easily portable to) any system that supports OpenGL 1.4 with ARB shaders, SDL and OpenAL. Compared to the original version of Doom 3, Dhewm 3 has many bugfixes, supports EAX-like sound effects on all operating systems and hardware (via OpenAL Softs EFX support), has much better support for widescreen resolutions and has 64bit support. It only supports old Mods if they either don't require their own game DLL or have been ported to Dhewm 3 - see the Mods page for more information. Mod-binaries who are supported, are bundled with Dhewm 3. External data is still required. Note that while the Doom 3 source code has been released under GPL, you still need to legally own the game and provide Dhewm 3 the game data to play. See the How to Install section for more information.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Unspecified source (platforms) —
  • Last technical check: 7 November 2026
  • Description from Flathub — AppStream (Flathub)

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