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DOOM 3: Phobos

in library

4/5

( 72 Reviews )

4

72 Reviews

English
FREE

DOOM 3: Phobos is a MOD

GOG’s curated selection of the best Mods, directly packed with the game for the smoothest installation ever. Install and play right away.

  • Requires DOOM 3
  • Install and play right away
  • Directly packed with the game

DOOM 3: Phobos is a MOD

GOG’s curated selection of the best Mods, directly packed with the game for the smoothest installation ever. Install and play right away.

  • Requires DOOM 3
  • Install and play right away
  • Directly packed with the game
Why buy on GOG.COM?
DRM FREE. No activation or online connection required to play.
Safety and satisfaction. Stellar support 24/7 and full refunds up to 30 days.
DOOM 3: Phobos
Description
  Waking up on Mars with no memory and a wound you can’t explain, you begin a desperate search for answers - about yourself, your past, and the catastrophe looming over two worlds.   You soon meet Samantha Miles, an agent of a sketchy world-wide conglomerate, who claims to know you. As she helps yo...
Genre:
User reviews

4/5

( 72 Reviews )

4

72 Reviews

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Product details
2018, Team Future, ...
System requirements
Windows 10, 2.0 GHz dual core, 3 GB RAM, NVIDIA GeForce 9800 GT / ATI Radeon HD 5750, 512 MB video R...
Time to beat
12 hMain
-- Main + Sides
-- Completionist
12 h All Styles
Description

 
Waking up on Mars with no memory and a wound you can’t explain, you begin a desperate search for answers - about yourself, your past, and the catastrophe looming over two worlds.
 
You soon meet Samantha Miles, an agent of a sketchy world-wide conglomerate, who claims to know you. As she helps you with your identity, you aid her in the quest to find a long lost friend and missing agent. When the original events of Doom 3 unfold, the two of you must scramble for safety while still tracking down the missing agent and your identity.
 
Haunted by fragmented memories and guided by the familiar voice of a girl named Lee, you’ll unearth bittersweet flashbacks, and fight for survival as a mysterious and deadly invasion spreads from the shadows of Mars.
 
Doom 3: Phobos is a free mod for Doom 3, available to anyone who owns the base game and DOOM 3: Resurrection of Evil Expansion. It is developed non-commercially by Team Future.
 

 
Explore a new set of maps, enemies and story for the beloved old Doom 3 game.
The game is divided into 4 episodes of varying length.
 
Episode 1: Overdue
Released December 3 2018
 
Episode 2: Disruption
Released September 27 2020
 
Episode 3: Collapse
Released June 2 2024
 
Episode 4
To be released
 

Features:

  • Original story set in the Doom 3 universe
  • Original voice acting
  • 19 Original maps
  • 3 episodes
  • New and improved shotgun
  • 4 new enemies
  • Updated weapons and enemies
  • Improved and fast paced combat
  • Environmental puzzles
 
System requirements
Minimum system requirements:
Why buy on GOG.COM?
DRM FREE. No activation or online connection required to play.
Safety and satisfaction. Stellar support 24/7 and full refunds up to 30 days.
Time to beat
12 hMain
-- Main + Sides
-- Completionist
12 h All Styles
Game details
Genre:
Works on:
Windows (10, 11)
Release date:
{{'2018-12-03T00:00:00+02:00' | date: 'longDate' : ' +0200 ' }}
Size:
5.1 GB

Game features

Languages
English
audio
text
GOG Mods
  • Curated selection of best mods
  • New free content for your games
  • Just install and play

From bug fixes, restored cut scenes, quests and characters to completely freshly-made new content, Mods are an essential part of the video game preservation. We teamed-up with these community-driven projects creators to offer you this list of handpicked Mods. Combining our strengths, these are now accessible right away, already installed within the base game for the smoothest experience.

The Mod you’re about to enjoy is the work of passionate fans who wanted to share their love in an even more meaningful manner. While every effort has been made to ensure a high-quality, stable experience, the original developers or publishers aren’t responsible for any issues that may occur from using this content.

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User reviews

Posted on: August 8, 2025

MekaShadowlight

Verified owner

Games: 260 Reviews: 5

Great mod, but the weapons feel nerfed..

I really enjoy the story and the pace it keeps with the original Doom 3 with a twist. However the MachineGun feels extremely nerfed and eats through ammo like no tommorow.. Plus maybe it's me but the Imps do way more damage , especially in hordes compared to the Original. Still overall a great mod


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Posted on: September 2, 2025

AeriaVelocity

Verified owner

Games: 30 Reviews: 1

First impressions are not positive

When I saw this on GOG, and read the description, I thought "oh, cool, a DOOM 3 mod with a greater focus on '90s action! That sounds great!" I downloaded it, I started up the prologue, aaaaand... What's going on? Why am I playing a walking simulator all of a sudden? Who's this girl? Why is my name "..."? Where the hell do I even go? While the promotional material and user reviews hyped me up, it's always the first impression that sticks. And my first impression of this mod upon playing it is "dying man simulator", not "DOOM 3 mod with heavy '90s influence". This is better than the base DOOM 3, according to the "helpful" reviews on here. Well, the base DOOM 3 didn't waste well over an hour trying to push me into caring about its story; the introductory segment was short, and kicked into action pretty quickly. And I can fire up the base DOOM 3 whenever I feel like a bit of DOOM 3ing. Phobos having these overly long setpieces makes it hard to just jump into, which is not very "'90s FPS" of it. Oh, and Half-Life is one of your inspirations, right? Except Half-Life didn't waste my time making me care about Gordon Freeman's childhood friend's mother suffering from a neural disease. It just told me - Gordon Freeman, 27 y/o, MIT graduate, late for work, go to the Test Chamber. And *its* introductory segment didn't overstay its welcome, either. DOOM 3: Phobos just makes me feel so bored I don't even want to get to the action bits. It feels like cutscenes you can't skip. DOOM 3 had proper cutscenes you could skip, and Half-Life had in-engine conversations that felt like they were just part of the gameplay. Phobos just does the DOOM (2016) approach of locking you into a room while Samuel Hayden tells you that destroying Argent Energy is a bad idea. Overall, based solely on the first hour of play, I don't really like this mod, and it bored me pretty quickly. If you could skip the cutscenes and jump straight into the action, maybe I would enjoy it a lot more.


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Posted on: July 27, 2025

Roanoky

Verified owner

Games: 11 Reviews: 1

Disappointment

After all the hype, I was expecting another Black Mesa. I've never played Doom 3 before, but I'm a veteran. To this day, I love and play old FPS games and new boomer shooters. This game has terrible combat, where when I shoot, I can't even see the enemy I'm shooting at or where I'm shooting. The game has a strange... perspective? Things and characters don't seem to fit into the locations? Everything just feels terribly console-like. Everything is monotonous, brown, and sterile. System Shock 2 takes place on a ship and still has unmatched level design. Why? Even the catacombs of ships and stations in space can be made interesting. I feel like I'm playing something from the Xbox.


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Posted on: August 3, 2025

fogwat

Games: 602 Reviews: 2

Servers always down

Can't review this Mod because I can't download it


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Posted on: June 10, 2025

ASnakeNeverDies

Games: Reviews: 6

Jarring.

It opens in walking sim territory, where you explore aimlessly, activating furniture to hear memories, and later on devolves again into it, which is not at all in keeping with its gamesake. That's entirely the case for a pointless prologue and an underwhelming first chapter that's still somewhat interesting, in a Blue-Shifty kind of way. It's only on account of the second and third chapters, which are very well done, that I recommend downloading this one. And that's all there is, so far.


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