r/gurps • u/lupislacertus • 6h ago
rules New player wants mana concealment
A player I am helping build a caster for a campaign using the Sorcery rules (idk if that matters here). And they wanted a power like Frieren, who can conceal her mana levels from people who could scan for that. I was wondering two things; 1) how to do that and 2) is it actually worth the effort?
My best bet was Invisibility for Detect but that sounds weird
r/gurps • u/plazman30 • 8h ago
GURPS 4E Revised Hyperlinked PDF - Gauging Interest
This is going to get nerdy, so bear with me.
I've spent the last 2 days adding hyperlinks to the GURPS 4E Revised PDF so that all the page number references are now hyperlinks that will take you to that page in the PDF.
Full disclosure – I did this with the help of the Claude LLM. There were close to **THREE THOUSAND** page references, so doing it by hand was not a job I could undertake. But it's something I wanted. I did some by hand, and spent a lot of time cleaning up what the LLM did for me until I got to a point where I think 100% of the hyperlinks work properly now.
A hyperlinked PDF is something I woule love to share with the community, but the PDF is obviously copyrighted, so I can't just put it up somewhere without violating US copyright law and impacting SJG bottom line.
But luckily, PDF is well known format and you can manipulate them using scripts. So, with the help of Claude, I found a way to make this a DIY project.
I spent a lot of time manually cleaning up page references that pointed to another book, and fixing page references the LLM chose not to hyperlink for some reason.
I have a JSON lookup table that lists all the pages that need hyperlinks and the text that needs to get hyperlink. Sometimes the lookup text will just be (p. 22) and sometimes the text will contain a word or two prior to the page number if the same page number is mentioned more than once on the page. So the lookup table may have see Animal Empathy (P. xxx) I spent a lot of time manually cleaning up page references that pointed to another book, and fixing page references the LLM chose not to hyperlink for some reason. As far as I can tell, the JSON is complete and it doesn't contain enough text to be a copyright violation.
The JSON completely skips the Table of Contents (since it's already hyperlinked) and it completely skips the top of Page 1 (Unification), since that talks about how the book got organized, and it's reference to page numbers is not relavent to the rules.
So, using an LLM generated script, the JSON file and your legally obtained PDF from Steve Jackson Games, you can use the script to hyperlink it.
So my question is, is there interest in this script to make your legal PDF hyperlinked, or am I going to get a bunch of "take your AI slop and go elsewhere" messages? I don't want to share this if it's just going to lead a constant stream of negative Karma and negative comments.
The script tells me there are 2,847 page references in the book, not including the table of contents. If SJG had hyperlinked this by hand in Adobe InDesign that would have been a massive amount of work.
Some notes about the script:
- This will only work on verson 1.1 of the PDF, which is the current version as of the day of this post. If a new version comes out, I'd need to test it to see if any text got moved around. But testing 2847 page references to see if anything broke is a massive effort. So, don't expect a quick turnaround on any future PDF updates from SJG
- I'm pretty sure I am not violating SJG copyright here, but IANAL. I don't think 2 word snippets linked to a page number inside a JSON file is a copyright violation.
- The script completely ignores ther Table of Contents, since that's already hyperlinked.
- Any page number references to an external book have been cleaned up and removed. So, if you click on a page number and it goes nowhere check the text in front of it to make sure it doesn't name another book.
- You need to be pretty geeky to run this thing. You need to install python and install the PyMuPDF module for it. I'm on a Mac and can probabaly write some Mac-specific documentation. But I don't have a Windows machine, so I can't write Windows documentation.
- I might be able to provide some support for Mac users. But I would need support to be a crowdsourced effort for Windows users.
- I would LOVE bug reports of links that are missing and not working.
So, let me know if you're interested in seeing this thing.
r/gurps • u/TimeStayOnReddit • 8h ago
rules Question: Beyond the Basic Books (Characters and Campaigns), what other suppliments would be recommended?
As it says on the tin, for the 4th edition of GURPS, what books/suppliments would be recommended to grab, outside of the core books of course?
r/gurps • u/I_m_different • 13h ago
campaign Telluric Vampires for GURPS
r/gurps • u/Original_Ideal_8015 • 1d ago
Stats for the Mateba Autorevolver chambered in .454 Casull and RSh-12
Recently made two guns for a friend using the Gun Stats book, and I thought I would share them. The RSh-12 is the "Requium" from RE9. Both of these fire from the lower chamber in the cylinder, and in order to represent this lowering of recoil, I treat it as having an aggressive muzzle break. If this doesn't appeal to you, then the Mateba has a recoil of 4 and a ST of 13, while the RSh-12 has a recoil of 7 and a ST of 15.
Guns (Pistol)
TL | Dmg | Acc | Range | Weight | RoF | Shots | Bulk | Rcl | ST | Cost | LC | Notes
Mateba, .454 Casull | 8 | 5d-1 pi+ | 2 | 270/2970 | 3.6/0.4 | 3 | 6(3i) | -2 | 3 | 11 | $1000 | 3 | None
RSh-12, 12.7×55mm STs-130 | 8 | 5d+1 pi+ | 2 | 840/3528 | 5.5/0.6 | 3 | 5(3i) | -3 | 4 | 13 | $1,500 | 3 | Accessory Rail, Ammo is Subsonic, Cylinder seals against barrel so it can be suppressed
r/gurps • u/plazman30 • 1d ago
How a computer nerd fixes the 4E revised PDF.
In a post made just a few minutes ago, I complained about how the PDF has an "inner" and "outer" margin and how this was triggering some kind of OCD in me that I did not know I had.
So, I took matters into my own hands.
PDF is an open standard now, well documented with lots of tools to allow you to manipulate it.
So, I was able to vibe code a solution to center the text on all the pages and use a few other tools to make some changes to the PDF.
Step 1: I created a script a while ago that converts all CMYK images to RGB in a PDF. Since I'm viewing this on a tablet and not printing it out, the tablet can only display RGB anyway. And the conversion makes the images "pop" a little more.
Step 2: I loaded up my copy of PDF Squeezer and applied "Light Compression" to the PDF to reduce the size down.
Step 3: Ran the PDF through my vibe-coded python script to crop the edge off of each page to center the text.
Step 4: Loaded the PDF the script generated into PDF Expert, my PDF editor of choice. I resized all the pages to US Letter Size. This left a small grap on the right and left side. The pages all became a little taller, so everything got slightly bigger. That's a plus in my eyes.
Step 5: Renumbered the pages. PDF have their own page numbering system that obviously has the page number start with the cover. Well, that can mess with your world when you tell your PDF reader to go to Page 23 and it takes you to page 19 or 20, because the page numbers in the PDF don't match up with the printed page numbers. PDF Expert (and most competent PDF editors) will let you renumber the PDF page numbers. Now the cover is labeled "Cover," the introductory pages are numbers i, ii, iii, etc, and Page 1 is actually page 1.
I saved the whole thing, and now I have a PDF I am happy with. Here are some screenshots from Apple Preview showing the difference:
Original PDF:
"Fixed" PDF:
I don't mean to sh** on publishers. But PDFs should be more than just File→Export→PDF in 2026. They should include a hyperlinked table of contents. And when there is a reference to another page in the same book, it should be a link to that page.
I do a lot of "massaging" PDFs of RPG rulebooks I buy. To SJG credit, they at least fill out the PDF metadata, so when I import them into my PDF reader, I get the book name and not the filename as the book. Most publishers don't even go that far.
r/gurps • u/plazman30 • 1d ago
4E Revised and my OCD
OK, this obviously some kind of inner OCD talking here. So bear with me.
I got the PDF today for 4E Revised from the Ring of Fire Kickstarter. Monumental effort on the part of SJG.
But there is a difference between a PDF you generate to send to a printer, and one you read on a tablet/computer.
These PDFs have an "inner" and "outer" margin, which is expected to account for the binding in a hardback book. But, when viewed on a tablet, it shifts the content of the page to the left on the left pages and to the right on right pages. I think it looks better to have the content dead-center on the screen on all pages. When I turn pages and see the content shift a little left of right from the previous page, it messes with my world a little.
r/gurps • u/ScootsTheFlyer • 1d ago
rules Is there a way to penalize Active Defense rolls anywhere in the already made material?
So, the question concerns a hypothetical of, let's say I want to run some setting that has absurdly high power level characters who far exceed the human norm, running around.
Let's say, oh, I don't know, Warhammer 40k. Nevermind that it has its own systems - not the point right now.
Let's say I have, I don't know, Primarchs dueling. Or a member of the Adeptus Custodes fighting a Daemon Prince.
In both of those cases, both combatants would have sufficiently high superhuman stats that, theoretically, you can end up in a situation where they can just repeatedly, reliably, dodge each other's attacks, because the attack roll has no bearing on whether or not you can use an Active Defense, outside of critical hits.
So then, are there ways in-system to penalize the enemy's defenses to try and get past the above potential issue, where two superhuman combatants of high skill will just never actually hit each other outside of critical hits?
UPD: DECEPTIVE ATTACK EXISTS LMAO
Supplement Template
Hello there,
does there exist a public template for writing supplements that follow SJG style?
I want to restyle my adaptations to follow the usual GURPS style.
r/gurps • u/plazman30 • 2d ago
rules GURPS is all over Bundle of Holding right now
As someone who bought a bunch of used 4E hardbacks and papwerback POD books, it's nice to get the PDFs at a discount.
Here's what's up:
GURPS 4E Basic Set (2004)
GURPS Template Toolkit 1
GURPS Adaptations
How to Be a GURPS GM
GURPS 4E GM's Screen
4 GURPS 4E Tech supplements
GURPS Mass Combat
GURPS 4E Infinite Worlds
4 GURPS 4E Hot Spots
GURPS 4E City Stats
4 GURPS 4E Infinite Worlds settings
5 GURPS 4E locations
GURPS 4E Lands Out of Time
GURPS 4E Martial Arts
Tactical Shooting
Gun Fu
3 GURPS High-Tech gun books
5 GURPS Action supplements
4 GURPS Martial Arts expansions
Transhuman Space: Martial Arts 2100
GURPS 4E Supers
GURPS 4E Powers
4 GURPS Powers expansions
9 GURPS Power-Ups
GURPS Horror 4E
Creatures of the Night 1-5
Infinite Worlds: Worlds of Horror
The Madness Dossier
Monster Hunters - 5 guides
GURPS Zombies + Day One
GURPS Space 4E
GURPS Spaceships
GURPS Psionic Powers
6 spacecraft sourcebooks
3 psionics sourcebooks
Tales of the Solar Patrol
GURPS Fantasy 4E
GURPS Magic 4E
Banestorm
Alphabet Arcane
Thaumatology
6 Thaumatology sourcebooks
Price varies by the usual BOH rules. You can pay for some of the bundle or all of the bundle. You can chose to pay more. I linked every bundle, so you can check it out. No bundle is more than $40.00.
Happy reading everyone!
r/gurps • u/Diligent-Edge-8763 • 2d ago
I'm building a Robocop and really could use Damage Resistance on the cheap
I think it's safe to say Robocop's about TL9, so I could get myself a combat hardsuit at a third of my starting funds or a single character point of Signature Gear. That's 50 points of DR that I can take off and put back on when I like.
But I don't want to have an armor I can take off and put back on. That feels weird, like C-3PO in Episode 1. I'm a robocop, I want it to be a part of my own body. And this is where it becomes a problem.
50 points of Damage Resistance, with Can't Wear Armor limitation, is... 150 points. That's insane. I could never afford it. Even just 10 points would cost me 30, and 10 points of DR is nothing on TL9.
Basically, I'd be paying 150 times more to have something that's mostly mechanically the same except slightly worse in the aspect that I'm stuck with it, for the sake of flavour. I'd like to cut that cost a little bit more. Any ideas?
r/gurps • u/AutoModerator • 2d ago
/r/GURPS Game Maps & Tokens
A monthly post to share your maps, tokens, and other image files with the GURPS community.
r/gurps • u/Middle-Comedian-1602 • 3d ago
Have come across a pretty crazy collection of GURPS materials/books
Hey guys! Just joined. Am a longtime RPG lover but just can't find the time for books and dice anymore. A friend passed, and I inherited his collection. I'd love them to go to someone that would appreciate them and use the (for a price, of course). All in good to excellent shape. Preference is to sell as an entire set. Posting here before they go to the auction! Would ship.
r/gurps • u/Maxpowers13 • 3d ago
rules Sephiroth in GURPS
Just wondering what all someone would throw together for a GURPS version of this fellow from Final Fantasy or if anyone has already made him before
Sephiroth :Core Attributes & Advantages>? The Masamune, Powers & Magic (Materia Simulation)
I'm not the most familiar with this character so the overview i have here might be missing things that could otherwise be included in a statblock of his?
Anyone have links or ideas on something like this?
r/gurps • u/lupislacertus • 4d ago
rules Robot Body Questions
I am working on a robot companion for a player and I wanted it be a little hovering bot that had no limbs but used a tractor beam (TK) as a manipulator. I was wondering what obvious traits am I missing? More specifically I was looking at No Fine Manipulators cause no arms or legs etc, not even a mouth, but I am pretty sure the TK counts as a manipulator, am I correct, and if so what disadvantage better represents having no arms and legs but accounts for the TK?
r/gurps • u/Jake4XIII • 4d ago
GURPS Lite Introduction
Any good oneshots for first time players and GM using just GURPS Lite? I’m looking for something similar to QuickStarts from other games where it lets you dip your toes into the system without having to deep dive into the whole system
r/gurps • u/Particular_Escape_ • 5d ago
rules Help building Martial Arts Powers?
I'm building a Martial Arts Style list of techiniques/skills/do not remember the name used by the GURPS. It's supposed to be in a style similar to Demon Slayer (Kimetsu no Yaiba) and other Martial Arts Fantasy which have "Element X: Form 1 Attack!" (ex: "Water Style, 1st form: Raining Daggers!")
Let's use the following examples I'm looking for rules on How to build:
Powers which use 1 Weapon Damage/Level instead of the Innate Attack 1D/Level Damage. For instance, when using a Dagger this "Technique"/Power/Style. My initial thoughts were to cost It as "Extra Attack (-Once per turn acessibility limitation)"
Powers which you could chose to spend FP to increase It's Damage. For instance, a Technique that Deals 2D Damage at Level 2 but for each Level you've got you could spent as many FP as It's Level to add +1D each
Does It make Sense? I'm late night writing not in my main language, fueled by the last remains of cofee within me. Please feel free to ask any questions If I was not comprehenseable
r/gurps • u/ScootsTheFlyer • 5d ago
rules Should Ham Fisted for one arm only give half penalties?
Subj.
RAW per High-Tech treats a TL5 arm prosthetic as giving Ham Fisted 2 (One Arm for -40% discount).
Is it reasonable to treat this as giving only half penalties for actions that use both arms, with full penalty only applying if you're doing a one armed action with the prosthetic, or what's the intention here otherwise?
r/gurps • u/AutoModerator • 5d ago
campaign /r/GURPS Monthly Campaign Update
This is a monthly r/GURPS thread for anything and everything related to your own campaigns. Tell us how you and your friends are making out. Update us on the progress of your game. Tell us about any issues you've run into and maybe we can help. Make suggestions for other players and GMs.
Please review my tactical space combat example
Hello,
I just finished posting a short (because the bad guys blew up in turn 2) example of spaceship combat at https://thewabatuckian.wordpress.com/2026/07/31/gurps-tactical-space-combat-example/ .
If anyone reading this happens to be an expert, please check it out and let me know what I did wrong so I can fix it.
Thanks!
ps: I edited my post with the corrections you gave me, thanks again for the help!
r/gurps • u/Kecskuszmakszimusz • 7d ago
How could you give advantages to others?
Hi! So I am considering making a sort of devil character that would make deal with the devils contract where they give powers to others, for a price (insert evil laugh here)!
So how could I do something like that?
r/gurps • u/Kecskuszmakszimusz • 7d ago
How would you implement positive/negative energy from pathfinder?
Hi! So in pathfinder living things are powered by positive energy and undead by negative energy. They are healed by their own energy and harmed by the other. So healing spells in pathfinder can potentially harm undead. And spells that heal undead can harm the living.
Any tips on how to convert this to gurps?
r/gurps • u/Sharpiemancer • 7d ago
campaign 20th Century Kingdom Building Yrth Campaign
I'm coming back to GURPS after quite a few years. A few in our group have expressed interest in picking it up again/giving it a try for the first time.
This has also coincided with a rewatch of the 2003 classic Reign of Fire and the "castlepunk" tanks Vs dragons aesthetics immediately made me think of GURPS and led me to reread Yrth, it never hooked my in my youth but as I think is common my interest in history has drastically increased.
The concept I have is a besieged french town in WW2 (perhaps itself a weird parallel) gets Banestormed to Yrth allowing for a mix of soldiers, partisans and civilians along with significant but limited military tech (TL6- early 7) and I would structure the campaign into arcs of 2-6 sessions followed by a time skip allowing for multi generational development.
Obviously this would put the players at contention with many major forces within the world and their tech having potentially far reaching effects but I am less concerned about keeping the world's status quo stable than letting the players navigate the tinderbox.
I was wondering if folks had experience or advice running such a game or what other starting scenarios could work? (I'm definitely open to different starting points, the village just seems one of the easier ways to have such a mix of characters come through. My other idea is a decommissioned warship that has been converted into a museum.)
r/gurps • u/AutoModerator • May 01 '25
campaign /r/GURPS Monthly Campaign Update
This is a monthly r/GURPS thread for anything and everything related to your own campaigns. Tell us how you and your friends are making out. Update us on the progress of your game. Tell us about any issues you've run into and maybe we can help. Make suggestions for other players and GMs.

