CstDoom3 is a gameplay mod for Doom 3 and Resurrection of Evil (RoE). The new features are entirely optional (opt-in), and nearly all of them can be configured using the menus. Here is an overview:

Show Access Codes: When you interact with a GUI that requires an access code (like the keypad of a locker), a window magically appears on the HUD (if enabled) showing the code you need to enter. Useful if you are tired of searching for access codes in PDA messages and audio logs.

Access Codes


Grabber and Double Barrel Shotgun in Doom 3: The Grabber and the Double Barrel Shotgun from RoE can be used in the Doom 3 campaign. These two weapons can be found in Mars City Underground, Hell, and Delta 5. Note: This feature is available only if RoE is installed.

Grabber in Doom 3 Grabber vs. Sabaoth


Double Barrel Shotgun in Doom 3


Chainsaw in RoE: The Chainsaw from Doom 3 can be used in the RoE campaign. This weapon is easily found in the beginning of the game (Erebus 1).

Chainsaw in RoE


Additional Key Layers: The keyboard and mouse keys have additional layers to which controls can be assigned. If you use this feature wisely, all relevant controls will be "right below your fingers", so you will never need to look at the keyboard during gameplay.

Headlamp: The new player headlamp can be turned on/off whenever you want, and functions independently of the weapons. Useful if you want to shoot and see at the same time. Works in singleplayer (no restrictions) and multiplayer (if allowed by the server). The image below compares the Headlamp ON (left side) with the Headlamp OFF (right side).

Headlamp


Demigod: This is something between god mode and the actual gameplay. When demigod is on, your health and armor levels decrease as usual when taking damage, but your health never drops below 1 (so you never die). Rumors say that you must enter cstDemigod at the console to enable it.

Run Freely: The "always run" and "toggle run" functionalities are available in singleplayer, and stamina drop can be disabled.

Run, Crouch, Zoom Indicators on HUD: If enabled, an indicator is displayed on the HUD while Run/Crouch/Zoom is active (each control has its own indicator, and you can choose which ones are enabled). This is particularly useful if you configure these controls as toggles. The indicators are shown in the image below (lower left). Run is red with ">", Crouch is yellow with "-", and Zoom is blue with "+".

Run, Crouch, Zoom Indicators on HUD


Smoke Control: The muzzle smoke of any player weapon and the fly smoke of their projectiles can be independently switched off. Works in singleplayer (no restrictions) and multiplayer (if allowed by the server).

Damage Feedback Control: Any of the player's damage feedback mechanisms (double vision, tunnel vision, screen blobs, pain sounds, etc.) can be disabled. Works in singleplayer (no restrictions) and multiplayer (if allowed by the server).

Miscellaneous: Other assorted options are available. For instance, the Flashlight can be switched on/off in singleplayer, and grabbed objects can be thrown with improved accuracy.

Bug Fixes: A number of bugs in Doom 3 and RoE have been fixed, some of which are multiplayer related (see the included list of changes). Notice that bug fixes are not optional (except for an experimental multiplayer smoke fix).

Hidden Multiplayer Bonus: The Grabber and the BFG now work in multiplayer. These weapons, however, have not been added to the existing multiplayer maps, so you need to create your own mod if you want to use them in multiplayer (see the included manual for a way to do it).

Additional Notes:

  • CstDoom3 is for the original releases of Doom 3 and RoE. It works both with the retail discs (patched to version 1.3.1) and with Steam (no patches required). It does not work, however, with the BFG edition.
  • Only Windows binaries are provided. These should work from Vista onwards.
  • The complete source code is included. Compiling for Windows requires only Visual Studio 2015 (Community Edition is fine).

CstDoom3 v1.1


Refer to the included manual for installation instructions.

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What's New in v1.1

Updated Menus: Now the options and controls of CstDoom3 can be easily configured using the menus (both the main and the multiplayer menus have been updated), and your settings are properly stored. Also, some options of Doom 3/RoE that were originally hidden are now accessible (for example, you can set a custom resolution via System/Advanced Options). The images below give an idea of what you will find there. Notice that the Game Options window has more options than what is shown in the screenshot (click on the image for additional information).

Controls


Game Options


Advanced Options


Help


Run, Crouch, Zoom Indicators on HUD: If enabled, an indicator is displayed on the HUD while Run/Crouch/Zoom is active (each control has its own indicator, and you can choose which ones are enabled). This is particularly useful if you configure these controls as toggles. The indicators are shown in the image below (lower left). Run is red with ">", Crouch is yellow with "-", and Zoom is blue with "+".

Run, Crouch, Zoom Indicators on HUD


Bug Fixes: The detected bugs from the previous version, as well as some additional issues from Doom 3/RoE, have been fixed. See the included list of changes for the details.

The Features

Here is a brief list of what is available:

  • Show access codes (locker codes, etc.) on the HUD
  • Grabber and Double Barrel Shotgun in Doom 3
  • Chainsaw in RoE
  • Additional key layers for the game controls
  • Headlamp
  • Demigod mode
  • "Always Run" / "Toggle Run" in singleplayer; Stamina drop can be disabled
  • Run, Crouch, Zoom indicators on HUD (new in v1.1)
  • Smoke control
  • Damage feedback control
  • Other stuff

For a better overview, see the description in the top of the CstDoom3 profile. Notice that all features are optional (opt-in).

A Tip

Since the Grabber can be used in the Doom 3 campaign, you might like to know that it can be very effective against a powerful enemy.

Grabber vs. Sabaoth


Additional Notes

  • CstDoom3 is for the original releases of Doom 3 and RoE. It works both with the retail discs (patched to version 1.3.1) and with Steam (no patches required). It does not work, however, with the BFG edition.
  • Only Windows binaries are provided. These should work from Vista onwards.
  • The complete source code is included. Compiling for Windows requires only Visual Studio 2015 (Community Edition is fine).

Get It

CstDoom3 v1.1


Refer to the included manual for installation instructions.

CstDoom3 v1.0 released

CstDoom3 v1.0 released

News 6 comments

CstDoom3 version 1.0 has been released. All new features, except for bug fixes, are optional.

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CstDoom3 v1.1

CstDoom3 v1.1

Full Version

CstDoom3 version 1.1. Refer to the included manual for installation instructions.

CstDoom3 v1.0 (Old)

CstDoom3 v1.0 (Old)

Full Version 2 comments

CstDoom3 version 1.0. This version is outdated and no longer recommended.

Comments  (0 - 10 of 22)
gameragodzilla
gameragodzilla

Is it just me or does this mod cause enemies to ignore Sentry Bots? They still get damaged but they always beeline straight towards me regardless.

Not a big issue, but having Sentry Bots that distracted enemies as well as shooting them made them much more useful.

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gameragodzilla
gameragodzilla

Nevermind, seems like it was an issue because I was using v1.0. v1.1 seems to not have this issue, though it also means I'll have to replay the entire game from start again because I like saving certain specific points in the game to replay later.

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WindSoar28
WindSoar28

Hello i have been playing your mod for awhile now and its really helpful it is awesome to have the grabber and super shotgun in Doom 3 as well as the other Bells and Whistles this mod Provides. And the headlamp is REALLY helpful no need for switching between weapons and flashlight anymore. though i have been having a hard time getting it to run Smoothly with a mod called Doom 3 Realistic Weapons v10 which all it really does is Balance out the weapons and changes how they work which i don't see how it would conflict with the Components of your mod. but it makes the weapon Selection go all Janky and messed up and i cant select the grabber anymore nor the super Shotgun. i have tried all the Methods Suggested in the installation instructions Manual you Provided like making a Base_Mod and D3XP_Mod folder outside of the base and D3XP folders and setting the Steam Launch Options. But it still didn't work i Even tried to add the Weapon Mods Files Specifically to the Mods Sub folders the cst_d3_a Folder and the cst_roe_a Folder as it affects the Standard Weapons in the Expansion pack ROE Along with the super shotgun in ROE as well and how it works. And it still didn't work. is the Mod i am trying to use with it just not Compatible?. i will leave a Link to the Mods Page so you can read the effects of the Mod yourself to see if it would effect your mod adversely and any help if possible to get the two Mods working together would be Greatly Appreciated. if Not i will just stick with CSTDoom 3 and stick with unmodified guns. Link to the Mod i am trying to use with CSTDoom3 v1.1 is here -----> Moddb.com

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fva Creator
fva

Thanks man. Unfortunately, CstDoom3 isn't compatible with the mod you have mentioned. I took a brief look at its modified files (inside the pk4's), and noticed that some of them are also modified by CstDoom3. Since this is guaranteed to cause conflicts, you can't combine these mods.

Regarding the manual, the instructions in Appendix A are intended to avoid installation conflicts only. By moving the other mods from "base" and "d3xp" to their own folders, you keep them available, but separated from CstDoom3.

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WindSoar28
WindSoar28

i Appreciate the reply and thank you its a Bummer but oh well

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Guest
Guest

Ok I keep getting a wrong game DLL API version error and I am using the steam version

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fva Creator
fva

Did you follow the installation instructions in the manual (Section 2)? Remember that you must use the created shortcuts (Section 2.5) to launch the mod. These shortcuts work even if Steam isn't running :)

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Guest
Guest

Oh!... I should've read the instructions in the manual more clearly. Thanks.

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fva Creator
fva

You're welcome. Have fun.

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pureevil29
pureevil29

You seem to know your way around the Doom 3 code like an expert! Great mod!

I would love if you could do something that has been neglected for quite some time and that is the introduction to modern features such as those that this mod provides to the multiplayer coop experience. Most coop mods are incredibly outdate by now and lack the polish and improvements the engine has received over the years.

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fva Creator
fva

Glad you like it, thanks! Although I don't intend to work with coop, I'll keep your suggestion in mind.

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stradexengine
stradexengine

If you think about doing something for Coop someday, I'll be up to help you in whatever I can (specially doing maps compatible with coop and SDK minor features)

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fva Creator
fva

Thanks for your kind offer. I'll keep it in mind too :)

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R_E_C_E_S_I_V_E
R_E_C_E_S_I_V_E

Yeah this guy has potential. Hopefully when I return back to my own mods I coulda use some of his unique assets.

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fva Creator
fva

Hi there! Thanks for the "potential", and good luck with your mods.

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