RATING / ESRB / A Created with Sketch. RATING / ESRB / E Created with Sketch. RATING / ESRB / E10 Created with Sketch. RATING / ESRB / M Created with Sketch. RATING / ESRB / T Created with Sketch.
RATING / PEGI / 12 Created with Sketch. RATING / PEGI / 16 Created with Sketch. RATING / PEGI / 18 Created with Sketch. RATING / PEGI / 3 Created with Sketch. RATING / PEGI / 7 Created with Sketch. icon_pin Created with Sketch.

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

{{ review.content.title }}
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.

You may like these products
Users also bought
User reviews

Posted on: June 16, 2025

Skyler_Batto

Games: 90 Reviews: 5

Mostly mid

Don't get me wrong, I love DOOM as much as anyone else. The issue with this game: delivery, conveyance, and pace. You have some of the same enemies, with the addition of one new one (not spoiling it here). But I'll start from the top. Delivery: Yes, I get that this is a fanmade project. But the delivery of story is kinda all over the place. Sometimes people feel flat when things are poppin off. Then there's times when characters include unecessary info, leave info out, or the conversation seems edited and parts that should have been cut out are left in or it's just scrambled to a point where you find yourself thinking, "Okay... wot?". Again, I get that this is a fanmade mod, so I don't expect a performance akin to Santa Monica Studios. Conveyance: Knowing that this is a fanmade project, I still can't forgive the conveyance. There are too many times when you find yourself asking, "What do I dooooo? Where do I gooooo?". Even the original DOOM 3 game and expansions had things like the PDA system to track codes, info, and objectives. Not to mention helpful things like actual signage or text on doors letting you know where you're at and where you're going. Not in this game. And not to mention, times when you can visibly see a location where you came from, from your current location. You do a thing, and see enemies coming from that earlier location and your brain immediately reasons, "Well, if enemies are coming from there, I must need to go there." Wrong. I could rag on conveyance forever. But I won't. These are just a few examples of this. Pacing: The pacing is- Idunno what to say. They tried to make combat fast-paced, which is cool. Kinda like DOOM 2016, goin back to them good ol' run-n-gun roots. Problem is, they're doing this with a DOOM game structure build on a framework of atmospheric horror. Not "I'm runnin and shootin demons! WOOOO!". That said, there are still some pretty DOOM 3-esque slow paced, atmospheric, horror elements. But for the most part, it's not.


Is this helpful to you?

Posted on: June 16, 2025

GeneralSturnn

Games: 320 Reviews: 17

Great mod!

Only finished episode I, and now I'm onto Episode II, it's pretty good.


Is this helpful to you?

Posted on: June 29, 2025

old80sgame

Games: 341 Reviews: 1

doom 3 phobos

cool mod thats finally available on gog


Is this helpful to you?

Posted on: August 12, 2025

lollucky301_8686

Games: 0 Reviews: 1

best game

its free and is most best game to play single


Is this helpful to you?

Posted on: June 21, 2025

Allesocho

Games: 60 Reviews: 14

Espectacular mod.

El gameplay esta mejorado y la escopeta es Dios, tenemos municion de sobra, los enemigos se comportan mucho mejor, los combates no son frustantes y los puzzles requierem exploracion o sentido comun. La trama esta muy entretenida, tiene un ritmo rapido, es misteriosa pero te engancha y la actuacion de voz tiene mucha calidad. No puedo esperar a ver que pasa en el episodio 4.


Is this helpful to you?

1
...
...
5
7
9
...
...
12

Something went wrong. Try refresh page.

This game is waiting for a review. Take the first shot!
{{ item.rating }}
{{ item.percentage }}%
Awaiting more reviews
An error occurred. Please try again later.

Other ratings

Awaiting more reviews

Add a review

Edit a review

Your rating:
Stars and all fields are required
Not sure what to say? Start with this:
  • What kept you playing?
  • What kind of gamer would enjoy this?
  • Was the game fair, tough, or just right?
  • What’s one feature that really stood out?
  • Did the game run well on your setup?
Inappropriate content. Your reviews contain bad language. Inappropriate content. Links are not allowed. Review title is too short. Review title is too long. Review description is too short. Review description is too long.
Not sure what to write?
Filters:

No reviews matching your criteria

Written in
English Deutsch polski français русский 中文(简体) Others
Written by
Verified ownersOthers
Added
Last 30 daysLast 90 daysLast 6 monthsWheneverAfter releaseDuring Early Access

Delete this review?

Are you sure you want to permanently delete your review for DOOM 3: Phobos? This action cannot be undone.

Report this review

If you believe this review contains inappropriate content or violates our community guidelines, please let us know why.

Additional Details (required):

Please provide at least characters.
Please limit your details to characters.
Oops! Something went wrong. Please try again later.

Report this review

Report has been submitted successfully.
Thank you for helping us maintain a respectful and safe community.