Sikkmod is a general enhancement mod for id Software's 2004 FPS: Doom 3 and its expansion pack: Resurrection of Evil. Its main purposes are to update visuals of Doom 3 to a more modern level and to allow the user to customize various aspects of the game to suit their preferred styles all while maintaining the core mechanics and aesthetics originally put in by id Software. The mod also includes a number of fixes to and better organization of stock files in order to create a clean and more stable base for future mods

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Jun 20th, 2011
66.40mb (69,625,512 bytes)
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Sikkmod is a general enhancement mod for Doom 3 designed to update the game to a more modern level visually, allow some customizations gameplay wise, as well as including fixes and better organization to stock files to be used as a base for future mods.

Change log taken from the readme:

// Change Log:


- Gameplay:
- Added a "Use" function. This is used to pick up moveable objects(g_grabMode = 1),
pick up items(g_itemPickupType = 1), and to search corpses for items(g_itemSearchFactor > 0),

- Adrenaline power up is now carriable with "_impulse26" to use it. It now has the effect of
cutting damage in half as well as infinite stamina.

- Added the ablility to carry health packs (g_healthManagementType = 1). "_impulse25" to use
health pack. The "g_healthPack*" cvars are used to customize the mechanic.

- Using "g_itemRemovalFactor", items can be randomly removed upon map load, just to add
some randomization

- Using "g_itemHelmetFactor", security armor will be randomly replaced with a new armor item:
"Marine Helmet". This has an armor value of 25.

- Using "g_itemValueFactor, each item's value will be randomly set. Like the variables above,
this is just to add some randomization and re-playability.

- All items now have physics. There may be some items here and there that are "sinking" into
ground but they should still be obtainable, this mostly happens with items on the bottom
shelf of storage cabinets.

- Made further tweaks to max ammo capacities

- Added a cvar to toggle between normal ammo capacity values (max and clip size) and custom values

- Changed max armor capacity to 50

- Some minor tweaks to weapon damages for better balancing

- Increased chaingun's rate of fire

- Accuracy is increased when zoomed in and Weapon Handling Type is set to "Realistic"

- Splash damage is now added on top of direct damage.

- Increased the locational damage scale for "chest" do to some difficulty complaints (the
previous scale kind of bothered me, as well)

- Decreased the locational damage scale for "head" for the pinky demon and cacodemon as they
were a little to easy to kill with the previous scale

- Added a toggle for whether the Cyberdemon can be damaged by normal weapons.

- Added a toggle for whether enemies of the same rank will fight each other.

- Adjusted the volume and distance variable of the pinky demon's combat chatter sounds

- Removed the crude random zombie script and implemented a better random spawning system
via code. It's still in its infancy but it works good enough for now and its not limited
to just zombies.

- Graphics:
- Updated and improved HDR implementation

- Added HDR dynamic lens flare effect

- Added color grading through the use of a lut. Much faster and more versatile than using math

- Added Bokeh! ;)

- Added an accumulation buffer style motion blur

- Improved the look of the soft shadows with using Box or Poisson blur methods

- Added localized radial blur effect from explosions

- Added a frost build up effect on the screen when in outdoor areas

- All new interaction shader using linear-space lighting, normalized Blinn-Phong
specular model

- miscellaneous tweaks and improvements to most shaders

- Interface:
- updated, of course, to include all new cvars

- made the sikkmod options menu more pretty.

- setting "g_useDynamicHud" allows the hud to fade when stats are static for a period of time.
Pressing "reload" will manually show the hud.

*Note: This list was made right before the release so it probably doesn't contain everything
that's new or been changed. I'm too lazy to keep a change log as I go.

- Initial Release

Preview Image
Sikkmod v1.1
Post comment Comments
Bersek Jun 21 2011 says:

This is amazing! This is amazing! I know I said this is amazing twice but this is amazing! Do we AMD/ATI cards users still need to disable AI Catalyst for the mod to work properly? I can not wait to try this out soon :)

+3 votes     reply to comment
Opinionator Jun 21 2011 says:

I couldn't get the 1st version to work on ROE? Worked on Doom 3 alright though.

+2 votes     reply to comment
cpl_nobbs Jun 22 2011 says:


There is a separate version for RoE.

+2 votes     reply to comment
Opinionator Jul 20 2011 replied:

Got both versions working now, cheers.

+2 votes     reply to comment
infantryspec Jun 23 2011 says:

does this has the 3rd person like GOW?

+1 vote     reply to comment
cr0wnest Jul 5 2011 says:

Doesnt work for me. I just get a white screen regardless of what sikkmod settings i use. Running on a HD 5850 with Catalyst 11.6 a little help here? Would really want to try this out.

+2 votes     reply to comment
farhad24 Jul 6 2011 says:

me too
turning HDR on gives me white screen with HD6870
though its doesnt work properly with all options off
please help i LOVE this game

+3 votes     reply to comment
Sikkpin Author
Sikkpin Jul 6 2011 replied:

CatAI needs to be turned off. If you can't turn it off through the control panel, you can either use a third-party program like ATI Tray Tools or rename "Doom3.exe" to something like "Doom 3.exe" (note the space).

Let me know if either of these things help.

+2 votes   reply to comment
zebra204 Jul 28 2011 replied:

Neither of those work, unfortunately. :(

+2 votes     reply to comment
farhad24 Jul 7 2011 says:

thanks buddy
the problem is that new catalyst driver dont have the option to disable the CatAI
and i cant use ati tray tool cuz it totally messes with my system i dont know why ! my pc goes unstable even if i just instal that thing and goes BSOD occasionally
i changed the DOOM3 to DOOM 3 but, since i'm using the steam version
i cant run the game
any other advise ?
any other way to disable CatAI?
i also tried to close CCC.exe through task manager but it didn't solve the issue
thanks anyway for answering

+2 votes     reply to comment
Sikkpin Author
Sikkpin Jul 7 2011 says:

I don't have the steam version so I can't say for sure but try downloading the 1.3.1 patch ( ), take the exe from that (the installer can be opened with 7-zip -, rename it, and stick it in your Doom 3 dir. Id games don't need to be "installed" to run so, my guess is, if you use the original exe it should run without steam.

+2 votes   reply to comment
farhad24 Jul 7 2011 says:

well i definitely run the original.exe . steam downloads the patches automatically so i have 1.3.1
also tried ati tray tool but it doesnt have the option to disable the CATAI , I also tried radeonpro to disable it but found no option :((
all i can do now is to fall back to former radeon drivers that i realy dont want to do bcuz doom isnt the only game i play
isnt there really any other way?
im really unlucky with mods believe me

+2 votes     reply to comment
farhad24 Jul 7 2011 says:

wow I finally made it
heres what AMD users should do to make it work
go to
C:\Users\"your name"\AppData\Local\ATI\ACE
open profile
edit this line
Property name="CatalystAI" value="Enable" />
to this
Property name="CatalystAI" value="Disable" />
thats over save and quit

and about the mod , its really great ! HDR ,bloom and soft shadows are nice, but soft shadows will seriously kill the performance so i turned it off.
thanks sikkpin for your great job

+3 votes     reply to comment
zebra204 Jul 28 2011 replied:

Didn't work for me.

+3 votes     reply to comment
Gvaz Jul 10 2011 says:

I also have steam and AMD and the latest driver has CatalystAI turned off properly (says so in the xml) but it doesn't work. Crashes on load of the game.

+2 votes     reply to comment
Gvaz Jul 10 2011 says:

Turning off Triple Buffering solved it

+2 votes     reply to comment
hazardinnio Jul 11 2011 says:

Hello, thanks for just fantastic mod, I love it very much!
But... Why SSAO not works correctly with FSAA 16x? I can clearly see black lines on the floor, walls... With FSAA 8x all is just fine, but is doesn't give that smooth image as 16x. And Lens Flare, Sun Shafts - I guess it didn't work? At least I can't see the changes, but framerate is going down :) And - what is SSIL?

+2 votes     reply to comment
at0mhard Jul 14 2011 says:

Any way to remove textures/shaders shimmering around the lines of edges contact?

In some areas it can be very distracting

+1 vote     reply to comment
at0mhard Jul 16 2011 says:

Nvm, i'll live with it. Reverted from FXAA to Nvidia's 8xS. GTX 460

+1 vote     reply to comment
卧槽 Jul 18 2011 says:


+2 votes     reply to comment
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sunglow Jul 18 2011 says:


+2 votes     reply to comment
aidor Jul 20 2011 says:

Fantastic work, it's like a new game! Thanks a lot!

Just one problem: Crosshair seems to be inaccurate. Pistol bullets hits a little lower right off the crosshair target, but only if I set the "static" crosshair in the options menu. If I use the "precise" crosshair, everything is fine (but I don't like this kind of precise crosshair).

PD: Sorry for my poor english, I'm from Spain.

+2 votes     reply to comment
Sikkpin Author
Sikkpin Jul 21 2011 replied:

I changed all weapons to fire their projectiles from the barrel as opposed to the center of the view. Some weapons already had this set, like the rocket launcher, but most others didn't. To change this back, open the weapons respective def file (for instance: "weapon_pistol.def") and look for this: "launchFromBarrel" and set it to "0". The def files are located in the "def" folder in the "pak_modfiles.pk4" file.

+2 votes   reply to comment
aidor Jul 22 2011 replied:

Ei, thanks for the answer. I'm not sure if I understand the difference between fire from the barrel and fire from the center of the view. I thought all projectiles should be fired from the barrel, but as I understand with your answer, there's no possiblity to fire from the barrel and at the same time hitting where the crosshair is aiming. I'll look in that "weapon_pistol.def" file and try what you suggest.

Thanks a lot for your help and for the amazing work on this mod. I've tried yours and the Perfected Doom (which use a lot from yours), and the result is superb.

+2 votes     reply to comment
zebra204 Jul 28 2011 says:

Did every possible "fix" I can find. I think its official to say, this mod DOES NOT work with ATI/AMD cards or at least not with any recent drivers.

+2 votes     reply to comment
Dareu Jul 30 2011 says:

hey man its work for me, i have the latest ati catalyst driver.

my specs:
ati radeon 4850 1gb 256bits
phenom x6 3.2 black edition
asus m4a88td-v-evo usb 3.0
1x4gb corsair 1333
ocz stXtr 2 500w

and man , some parts of this game go on 15 fps wtf o.O, its time to buy a new radeon^^

hey for who having problems with ati, just go in the ati calatyst tray icon and select /ati radeon hd xxxx series > 3D settings > Catalyst A.I > Disabled . and thats all.

i hope ati users can run it full perfectly , cuz this mod its amazing.

edit: sorry for the bad english , but i try =P

+2 votes     reply to comment
ashkan_ Aug 2 2011 says:

Thank you so much

+2 votes     reply to comment
Zazza Aug 15 2011 says:

Greetings Sikkpin... Unfortunately I can't make it to work. Enabling most of the options make things go crazy: HDR = white screen, Motion Blur = blue and cyan texture effects when it comes into play, the other options make the FOV change dramatically and make everything stretched and overlapped.
My card is a Radeon 5870; using latest driver (11.7). Same things happen with or without Catalyst A.I. enabled. Playing the Steam version.
Could it be since I'm trying to play with a non-standard resolution (1920x1080)?

Any clues? Thank you very much for your time...

+2 votes     reply to comment
Zazza Aug 17 2011 replied:

OK... Solved forcibly disabling the Catalyst AI in the xml profile file... Maybe I didn't previously modify that file in the right way. Thanks.

+1 vote     reply to comment
Crew900 Aug 19 2011 replied:

Zazza what u did ? And its working ???? I tried disabling Catalyst AI using RadeonPro but then game crashing when loading main menu ...

+1 vote     reply to comment
cleupadinho Sep 12 2012 replied:

Also didn't work for me disable CatalistAI in the xml file. Any help?

+1 vote     reply to comment
UCLIN Jul 14 2013 says:

This mod can use in Doom3 BFG?
I just have BFG...

+1 vote     reply to comment
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Released 2011
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