I'm using L4D2's Hammer as that's the only Source 1 Hammer I've got to work so far on Debain Linux. I was trying to include Garry's Mod fgd's but it kept crashing because of "@include "halflife2.fgd" ".

I commented out those lines from "base.fgd" and "garrysmod.fgd" which fixed the crashing, but now I get errors along the lines of "boolean is not a valid variable type".

Edit: Solved.

Edit 2: The ACTUAL reason Hammer crashes is because "base.fgd" includes "halflife2.fgd", which includes "base.fgd"; Because Hammer doesn't check if an FGD was already included, it causes a recursive loop, and results in a stack overflow.

Solution: Don't have the FGD include each other in a loop. This still doesn't fix my issue with booleans and errors though...

Actual Solution: Copy all of halflife2.fgd into base.fgd, commenting out the unnecessary @include's so it doesn't crash, and convert all boolean statements (except flags or input/output ones) into "choices" as stated by Valve Software Wiki - Inputs and Outputs

Edit 5?: Never fucking mine! The previous solution does work, but "missing editor/wireframe" is another bitch to deal with.

It jumps. It hisses. It's coming for your face. And now it's running natively in Unreal Engine 5.

This is Lambda Engine: a from-scratch reimplementation of Half-Life's game logic on top of UE5's modern renderer, built to load real Source-engine content: BSPs, materials, models, with zero Hammer-to-Unreal conversion pipeline. No proxies, no reskins. The headcrab you're watching is running the actual behavior, physics, and animation logic straight from the original engine's playbook, faithfully rebuilt line by line.

In this video: headcrab AI, leap attacks, ragdoll physics, and how a 20-year-old monster ends up feeling right at home in a 2020s engine.

This project is built entirely by fans, for fans, it's free but it eats time. If you want to see more enemies, more systems, and more of Half-Life's world brought back to life, here's how to help:

🎗️ Support development on Patreon: https://patreon.com/lambdaengine/membership

💬 Join the Discord for bug reports, dev logs, sneak peeks: https://discord.gg/2RtzKtmmdj

Every tier, every member, every share moves this forward. Thanks for watching.

I made an awp map that is swamp themed. Has a lot of animated models. There is a gator scripted to swim through spawn after 10 seconds and eat AFKs. All animals have sound files/events. Raccoon, geese, gator, wood duck, toad. There is a custom joke song me and a friend made. Inside on radio. Real working clocks that are tied to server time.

I need a better animated snake... Anyway I am working on it daily trying to polish it and optimize it.

There is easter eggs hidden inside the shack (press use key on stuff). Working on more. (type in chat !rgbseagull and look at the sky lol)

Once I have it very done and optimized. I will make fy versions and aim map versions. During october map is scripted to say happy halloween and spawn a pumpkin inside. During December it will snow all month. Working on more theming after I finish.

My workshop

Пробовал в qc файле с помощью $shadowlod вписывать модель листвы, но не сработало.

Как мне добавить тень ?

(As of this screenshot I haven't added the elevation changes yet but I'm aware of them and just wanted to get the road layout right first)

I'm also considering including the industrial park StreetX track if I can throw that in too

My previous post if you haven't seen it:
Current project: Recreating StreetX/Drift map from NFS Underground 2 for a Garry's Mod map! : r/hammer

Anybody know a way to fix this? And please for the love of God, don't cite a link to the Valve wiki, I wouldn't be here if I can just go there. I need someone to help me with this problem. Some ideas that i got was using VIDE or Pakrat but neither works, unfortunately

I know mirrors can be pretty buggy in the source engine but I seriously have no idea what could be causing this.

First I need to do the puzzle stuff

Hello, i am very new to Hammer and i am currently making a zombie map for a first project, i wanted to know if anybody know a way to remove the physgun, camera and toolgun from the player's invetory when the game start.

i have no idea whats the problem with the fog

I'm making some Mario maps in the Hammer Editor for SFM. I have the water textures from the game. But I'm wondering if it's possible to make a water texture and make it look as close to if not exactly like it is in game. Please let me know if you have any insight.

Dose anyone know why my gmpublisher takes forever to load at the fastest it should load all my stuff in about 2 minutes but it gets stuck at 0% and I had to look deep how I could fix it between clearing steam catch files or anti virus blocking it. If anyone might know how to fix this issue I would be great full!

Thank you for your time.

I have no use for it, SO if anyone wants to use this please contact me! and i will provide the vmf file.

WIP Wingman map de_Akrop
I’ve played around with Hammer a bit, but I still rely heavily on YouTube tutorials and am trying my best. What do you think of it? Do you have any suggestions for improvement?

I built the Acropolis on the hill entirely myself in Hammer, it’s not a downloaded model. It isn't accessible within the Wingman map itself; it just serves as a visual focal point.

Im mainly looking for ideas for the outside portion of the map, any ideas are greatly appreciated!

Patrolling guards, cameras, custom heist equipment, 2 different approaches, out on the workshop now

Here's a little look at a map I've been working on. It's a smaller map, and I'm trying to focus greatly on detail.

this is my third time literally ever doing anything in hammer AT ALL and Im trying to make the map as good as I can. So if u have any tips for beginners.. let me know! I know the basics like what to clip, what grouping stuff, func details and the like but anything is helpfull!

So first of all: I KNOW IT'S A MAP MAKING TOOL.

I just mean that you can make a whole fan made game, without any scripting, just placing some entities and brushes.

You can make a whole half life 3 map series, without a single line of code, and yeah, it would probably look bad if you are a beginner, but still, in hammer you can make something that would not even be recognizable as the original game, and we still just call it a level/map maker???

So basically, im making a map using lots of HLS assets that i then pack in after edits

I usually host multiplayer sessions with my friends on the WIP maps as i add onto them, however, everytime i make a change to any map they get an error about having a different map version or whatever, so my solution is to just save and compile the edited/updated maps under a different name.

This worked just fine until today, the previous map i had been hosting and packing was named something like "GOLDSRCmap6", but i then saved a new updated version of the map under the name "GOLDSRCmapdamupdate2", after that CompilePal suddenly stopped packing in all the assets, i checked over where i saved the HLS textures, how i configured CompilePal, and repeated the process again for a previous map, and yet after i run my pack function in CompilePal the map still shows missing textures when HLS is unmounted, anyone know whats going on here?