Version 9.0 has been uploaded! It can be found at the Downloads page of this mod. It's still a WIP, so expect some issues.

Report article RSS Feed Modding With the GECK, Part 1

In this tutorial, I'll go over the basics of creating a new .esp file, changing a weapon, and playing your new mod.

Posted by Slayer_2 on May 12th, 2010
Basic Starting a mod.

Hello, I'm Adam, and this tutorial will allow even the biggest modding newbies to start work on a basic mod. I made these tutorials so that people can play around with my mod, or make their own. I realize that the official Fallout 3 site has some tutorials, but those are more based on level design, rather than gameplay. These tutorials are meant for people who want to make conversion mods like mine. The tutorial is written in several easy steps, with big pictures, so don't worry about getting lost. feel free to leave a comment if you need clarification on something. Enough talking, lets get started.


1) First, you need the GECK, get it here: Download

2) After you've installed the GECK, start the program and navigate to the "File" tab in the toolbar, select "Data...".

Tutorial 1 Pics

3) A box called "Data" should have popped up. Select "Fallout3.esm" (make sure a black X appears on the left of the title). Press "OK", and wait for it to finish loading.

Tutorial 1 Pics

4) Press the save button, and save your mod as something you like. I called my "tutorial_mod", but you can be more creative than that, if you wish.

Tutorial 1 Pics


At first the GECK can be overwhelming. You have data that controls 90% of the Fallout 3 game right at your fingertips. I know that when I first used the GECK, I had no idea where to start. For the sake of simplicity, I've decided to start with a weapon mod.


5) Lets get started with some weapon mods. First, lets use the "Object Window\" to find the "Weapon" sub-section. (You can find it under the "Items" section).

Tutorial 1 Pics

6) Now, click the little [+] icon beside the "Weapon" section. Then click the [+] on the "Weapons" sub-section. Now, select the "1HandPistol" section.

Tutorial 1 Pics


The weapon we're going to be working on is the ever-so-useless "Chinese Pistol". Perhaps second only to the .32 Pistol in terms of uselessness. We will be focusing on naming techniques and conventions, damage, ammo use, projectiles, and clip size.


7) Double-click on the "WeapChinesePistol" item in the "1HandPistol" section. This is the Chinese Pistol, as you might be able to guess from the Editor ID.

Tutorial 1 Pics


The GECK has two names for most things: and in-game name, which the player see's when they're roaming the wasteland, and an "Editor ID", which is only used in the GECK (for scripts, and other references). For example: if a script is going to add this pistol into the player's inventory, the script line will say: "player.additem WeapChinesePistol 1 1", not "player.additem Chinese Pistol 1 1" (the two ones at the end denote the amount of an item to add, and whether the player should be alerted or not). We'll do a lesson on scripting later.


8) In the top left-hand corner of the Weapon box, there is a "Name" section, change the name from "Chinese Pistol" to whatever you want. I called it a "C96 Mauser", its real-life name.

Tutorial 1 Pics

9) Time to test, save your work, exit the GECK (it can take a while, be patient), and enable the mod (I recommend you disable all other mods while you're testing your mod).

10) Load up Fallout 3 with you mod running, and find a Chinese Pistol, or cheat for one with this code "player.additem 00004325 1", minus the quotation marks, obviously.


If everything has been done correctly, your Chinese Pistol should now be named whatever you decided to call it. Time to make it do some serious damage.


11) Time to work on the damage this baby deals, go to the "Damage" box, and put "25" in there, instead of "4". Save and test the mod again, if you wish.

Tutorial 1 Pics

12) Done blasting the citizens of Megaton? Alright, lets make this into a burst-firing pistol. I think a two burst shot is decent. First, change the "Ammo Use" box to read 2, so that the gun consumes two rounds per pull of the trigger. Next, change the "# Projectiles" box to read "2" instead of "1".

Tutorial 1 Pics

13) To compensate for the doubled ammo use, lets change the clip size. I think 16 shots is a decent amount. Some simple math, and you can figure out that this gives you 8 shots before you need to reload.

Tutorial 1 Pics

That's all for Part 1. Feel free to experiment with modding the default weapons, take a look at the stats, some are quite self-explanatory. In Part 2, we'll get around to making new items, more depth with naming conventions, ID's and such. I hope this tutorial has been of some help to you guys. Take care,

Adam

Post comment Comments
ApornasPlanet
ApornasPlanet May 13 2010, 8:04am says:

Nice! Tutorials are always welcome!!!1 Big up!

+1 vote     reply to comment
Slayer_2
Slayer_2 May 13 2010, 1:13pm replied:

Thanks :)

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 13 2010, 10:33am says:

awesome! Can't wait to mod the Fat Man for some massive destruction fun xD
Thanks a LOT!

+1 vote     reply to comment
Slayer_2
Slayer_2 May 13 2010, 1:09pm replied:

No problem man, I can do the next tutorial on projectiles and explosions.

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 13 2010, 1:43pm replied:

that would be ..... I don't even know the word that would describe that =S ! Much appreciated if you do it!

+1 vote     reply to comment
Slayer_2
Slayer_2 May 13 2010, 1:58pm replied:

How does a shotgun-rocket launcher sound? You'd also learn about projectiles and explosions (so you could remove the drop on the fatman projectile, and make the explosion bigger, more damaging, etc).

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 14 2010, 1:37pm replied:

So we can EVEN reproduce the nuke bomb in this small town just outside the Vault 101? O_O ! Oh my...
And talking about the rocket shotgun, did you meant each projectile is a rocket? or like in Borderlands where you have a single shot rocket shotgun? If it's the first option, then... wow...just WOW!I guess you'll need lots of rockets to shoot with this baby tho xD

+1 vote     reply to comment
Slayer_2
Slayer_2 May 14 2010, 5:10pm replied:

You could make an explosion that big, but it would be hard to find a use for it, even if you made the Fat Man shoot like a missile launcher. Your target would have to be several hundred feet away, not to mention the radius of the rads :P

By shotgun rockets, I mean a modded missile launcher, that shoots 3 (you can make this number anything within reason) rockets at once. As you can imagine, it's not ammo conservative, or very accurate, but it IS very fun.

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 17 2010, 12:58pm replied:

thanks for the info!
And when I asked about nukes, it's just for some random fun, shooting it, then watching it explode.... Isn't it beautiful xD ?

+1 vote     reply to comment
Slayer_2
Slayer_2 May 17 2010, 7:51pm replied:

Yeah, I do stuff like that every so often, like the time I made a "Nuke Summoner" that summoned a nuke at the position of every hostile nearby.

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 18 2010, 12:46pm replied:

whoa..... you should create a Fallout 3: SMOD....*sarcasm* xD
(I was joking, you are already too busy with this project)

+1 vote     reply to comment
Slayer_2
Slayer_2 May 18 2010, 8:53pm replied:

What is "SMOD" sorry if I sound like a noob :P

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 19 2010, 10:38am replied:

Fallout : SuperMOD (check out the HL2 SMOD). Basicly, they added a crap load of weapons going from PSP disk launher, to banana bombs, or sniper rifles, or Golden Crowbar, and many many more. It's like a mixture of fun / unrealistic (not related at all to the game) weapons that makes the fun much better xD. This can also included skills, like Slow-Mo, or Night vision, or infra red vision, etc...

+1 vote     reply to comment
Slayer_2
Slayer_2 May 19 2010, 11:59am replied:

Ah, I see, I've never really go into Half-Life, so I wouldn't know :P

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 19 2010, 12:16pm replied:

ohhhh, you should try it out... best saga of all times =) (and the modding community is excellent)... And my bad too, it's just that as a daily (if not hourly) Steam user, I think that everyone knows Half-Life or at least tried it once =@...

+1 vote     reply to comment
Slayer_2
Slayer_2 May 19 2010, 10:06pm replied:

Oh, I've played the second one, I just didn't complete it, as I got stuck on that damn hover-boat level. I did love the beeping sound that dead soldiers made :P

I enjoy Steam as well, especially L4D and Portal.

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 20 2010, 12:13pm replied:

btw, do you mod only for F3 and idtech 4? I don't know if you ever tried Source, but this is the only engine (well, currently I am also trying mapping for NS2) I tried modding for, and I find it quite powerfull and easy to use, what do you think of Source? I know some stuff is quite hard to change, but in overall?

EDIT: can't wait for Portal 2 to come out too =)....even tho I have been waiting already 2 years for HL2 Episode 3 T.T...

+1 vote     reply to comment
Slayer_2
Slayer_2 May 20 2010, 1:50pm replied:

I've also dabbled in the Unreal Engine and the modified ID Tech engine used in CoD4. I've also made an unreleased Reborn mod for Crysis that is quite fun, and a realism mod for L4D. I did try mapping for L4D, it's similar to the ID Tech Engine, powerful, but very hard to learn. I gave up on it, to tell the truth :P

Portal 2 is highly anticipated, to be sure. I wonder if GLADoS will be back?

+1 vote     reply to comment
Awesome_ninja
Awesome_ninja May 20 2010, 9:11pm replied:

yes, his best quote so far is:
"you know, I was very busy being dead!"
go to gameinformer's portal 2 hub

+1 vote     reply to comment
Slayer_2
Slayer_2 May 24 2010, 2:17am replied:

Yep, Portal 2 looks awesome :)

+1 vote     reply to comment
sbseed
sbseed May 15 2010, 6:05pm says:

awesome, this tutorial is better than any of the ones on the fallout forums or the ones bethesda did.

factual to the point making it informative, instead of 'oh look what we can do'

+1 vote     reply to comment
Slayer_2
Slayer_2 May 16 2010, 3:53am replied:

I suppose the problem with making tutorials for your own game is that you already know the SDK in and out.

But yeah, I had a very hard time learning how to mod Fallout 3, I hope to cover the basics in a few tutorials, and that people can branch out. For example, they could take what they've learned here, and make the Chinese Assault Rifle have a 20-round clip, and deal 25 damage per shot.

Lots of possibility from one small tutorial.

+1 vote     reply to comment
Nikey646
Nikey646 Jul 12 2010, 12:48am says:

Excellent Tut mate (already knew how to do it tho) when does Part 2 come out? Want Some help With it?

+1 vote     reply to comment
Slayer_2
Slayer_2 Jul 12 2010, 2:42pm replied:

Thanks man, I know it's basic, but it's a good start. And feel free to work on Part 2 and email me it at reborn.mod@gmail.com, although I will eventually get to work on Part 2, but right now I'm quite busy with the release of V8 beta.

+1 vote     reply to comment
Nikey646
Nikey646 Jul 12 2010, 7:23pm replied:

haha, i might do it now while i wiat for some friends to come online to play Fallout Online 2238

+1 vote     reply to comment
Nikey646
Nikey646 Jul 29 2010, 11:27pm replied:

I have finished Modding With Geck V2 and passed it onto Slayer, and now just awaiting for him to upload :)

+1 vote     reply to comment
Slayer_2
Slayer_2 Aug 1 2010, 1:32am replied:

Could be a while, I'm spending most of my time modding V8, but all in good time :)

+1 vote     reply to comment
Acevetren
Acevetren Sep 19 2010, 8:03pm says:

Sweet dude, i'm planning on learning to mod Fallout to, gonna make a mod of my home town rofl

+1 vote     reply to comment
Slayer_2
Slayer_2 Sep 24 2010, 4:51pm replied:

Well, I hope this helps, once you get started, it's easy to learn the rest. The hardest part for me, was figuring out how to start making an actual mod :|

And you want to create a nuked version of your city? Where do you live?

+1 vote     reply to comment
Ecklipse
Ecklipse Apr 3 2011, 11:06pm says:

Thank's alot for this. This is definitely a good first step into modding I think. Especially since it's always nice to change // add new weapons to the game since you tend to only use a couple if you play Vanilla.

Hope you put out some more mods on this stuff. I would love to see more of this.

+1 vote     reply to comment
Slayer_2
Slayer_2 May 15 2011, 3:13pm replied:

Thanks man, I hope to get some more tutorials done sometime after Reborn V9 is released. If you have any questions about modding, you can always PM me.

+1 vote     reply to comment
Pribula
Pribula Dec 25 2012, 6:53pm says:

Nice tutorial, but i want set double nutrition value of food or make it more common (2x-3x) and for water about 30-50% more hydratation value.
Thx.

+1 vote     reply to comment
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Platform
Windows
Game
Fallout 3
Developer
Abyssal Games
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Release Date
Released Apr 22, 2009
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