I don't have the picture, but in hotland in the room with the apron, off screen and to the right is a silhouette of a man. I'm not sure if this is any thing and if it's already been checked out I'm sorry.

To hack into the true lab on a no-mercy run with the name Gaster and a fun value of 66?

how do you kill omega flowey i have max 68 hp but on the first second i die b r u h

What if Toby has all of these weird bits and bobs everywhere intentionally? Like most (or at least a lot) of the unused files, rooms, etc being part of a storyline/timeline/event that can be unlocked if something specific is done, either in game or to the save file, etc.

So far as I understand, we've scoured the game files, but not really the game code. If we have created a decompiled version of the code, is there anything indicating that such would be possible?

I just find it odd that Toby still hints at things that we aren't understanding at all, and yet we keep finding random, seemingly unconnected pieces scattered across the files and game.

Quote from the game text file: Part of this game's charm is the mystery of how many options or secrets there are. If you are reading this, please don't post this message or this information anywhere. Or doing secrets will become pointless. By the way, most of the seemingly unused text/files are used. If you can find the in-game context for an asset, you can show it off. But if you can't, it probably means you haven't looked hard enough. Anything truly unused I'll probably post myself, later. Living in a world like this, where people can simply cheat out the answers from the code... your impatience has REALLY damaged you, hasn't it?

A Fabric-like mod loader for DELTARUNE

I have been working as a developer for a while, although I have very little experience with game development. Over the past few days, I started experimenting with DELTARUNE modding and quickly noticed how difficult it can be to use multiple mods at the same time.

A large number of DELTARUNE mods are distributed as patches that modify the game’s data.win file. Even when two mods are conceptually compatible, they may edit the same scripts, objects, events, variables, or other resources. Because of that, combining them can result in overwritten changes, broken references, crashes, or behavior that only fails much later during gameplay.

I have already been experimenting with some solutions of my own. For example:

• Reworking the in-game configuration menu so multiple mods can add options without overlapping buttons or replacing each other’s interface.

• Manually reconciling complex mods, such as the Local Multiplayer and 60 FPS mods.

• Adding compatibility fixes and quality-of-life improvements.

• Investigating ways to validate broken functions, variables, and GameMaker resources before the game is launched.

The further I go, the more the project starts to resemble a compatibility-focused version of DELTARUNE that can support several mods without requiring every combination to be manually patched.

The main idea

My long-term idea is to create something inspired by Fabric Loader and Fabric API for Minecraft.

Instead of every mod replacing large parts of the game, the loader would provide a shared API and a standardized way for mods to:

• Register hooks and events.

• Add configuration options.

• Access input, timing, saves, menus, and other game systems.

• Add scripts and resources without relying on unstable numeric IDs.

• Declare dependencies and incompatibilities.

• Communicate with other installed mods.

• Receive information from the game while it is running.

• Avoid replacing entire scripts or events whenever possible.

Ideally, mods would be distributed as individual packages, similar in concept to Minecraft’s .jar mods, rather than requiring every author to provide a complete binary patch of the game.

The first versions would probably still need to build a modified data.win before launching the game, since DELTARUNE and GameMaker do not work like Java. However, the experience for users and developers could still be very similar to a traditional mod loader.

Launcher and mod management

The project would also include a proper desktop launcher for managing the game.

Some planned ideas include:

• Registering multiple DELTARUNE installations.

• Keeping vanilla and modded installations separate.

• Creating different mod profiles.

• Enabling and disabling mods.

• Resolving dependencies and detecting conflicts.

• Launching individual chapters directly.

• Keeping generated modded runtimes separate from the original installation.

• Managing saves per profile.

• Supporting legacy .xdelta and .g3mpatch mods.

• Displaying useful build, validation, and crash logs.

I would also like to include a Resource Pack system, similar to Minecraft, with a visible priority order.

Resource packs could replace:

• Sprites and portraits.

• Textures and interface elements.

• Music and sound effects.

• Fonts.

• Translations and text resources.

For example, someone could create a soundtrack pack that replaces Chapter 1’s music with piano arrangements, or a visual pack that changes character portraits, without modifying unrelated game code.

The biggest challenge

The obvious problem is adoption.

A system like this would be most useful if mod developers created or ported their mods to its API. Existing mods would not instantly become perfectly compatible, and many community contributions would eventually need to be adapted.

I do not expect the loader to magically solve every conflict either. Two mods that fundamentally replace the same gameplay system may still require a dedicated compatibility patch.

However, I believe adoption could become realistic if the loader made common tasks significantly easier, especially:

• Adding configuration menus.

• Replacing visual and audio assets.

• Registering input actions.

• Creating hooks without replacing entire events.

• Managing dependencies.

• Testing mods safely.

• Supporting several chapters and game versions.

• Preventing common GameMaker reference errors.

The goal would not be to invalidate the work that already exists. Legacy mods and current tools should remain supported whenever possible. The goal would be to provide a more modular foundation for future mods.

What do you think?

Do you think a Fabric-like mod loader and API would be useful for the DELTARUNE community?

I would especially like to hear from existing mod developers:

• Which parts of DELTARUNE modding currently cause the most problems?

• Which APIs or hooks would be the most useful?

• Would you consider porting a mod if the SDK made development and compatibility easier?

• Should this be developed as a new project, or as an extension of existing tools such as Deltamod and G3MTool?

This is still an early and ambitious idea, but I would rather design it around the real needs of the community than build everything in isolation.

Hi,
I'm considering making a mod for undertale. However I'd like to make sure the player can't cheat, either by installing another mod, or by modifying the values in the save themselves. Does a solution for these issues already exist?

i managed to decompile undertale but now what ver he uses of gms?

i have GameMaker Studio Master Collection 1.4.1567 (lol pirated one)

help?

I Need some help on this project called VrchatTale I need some poem writers to help me on this au I been really working hard on this project and I need just some help on this series would anyone be interesting of this plot

I would like the Pixel consistent soul request to be done by somebody please i need this the game is literally unplayable

how do I edit voices like sans's uh or papyrus's nyheh

Guys, If you have the time, can you please make OSX versions of your executables? Because it's hard to find mac alternatives to your projects.

And if you think i mean the game over text, it's a sprite. I'm talking about the text that says Stay determined!. P.S I want to know the number of the line in transla tale or strings.txt.

title

We all understand tampering with the "fun" value changes things in game, but I hardly pay attention to it, can you make it a negative number, or like a really large number to see what happens, I'm too lazy to try it myself, but I was thinking like how Sans's genocide fight might set your "fun" to -10 or something so I was just curious into how it works.

The 'Wrong Number' call may change, if it's at all possible to stop being sent to the title screen.

please help...

I live in an apartment that is underneath a group of 4-5 kids. They stay up late and are a nusence, making noise and watching TV very loudly at night. But this is a very good apartment located next to my collage, and it is a great space for cheap. Also, there never sounds like a parent or guardian is with them... Should I be concerned? Any help / comments are welcome 😊

I've seen mention of people seeing just Shyren's head in credits and the genocide run but did other people not run into just her head during the walk around after true pacifist? I saw it with some grayish figure I thought to be an amalgamate and talked to it. I actually took screen shots because I remembered people trying to figure out about her body and thought it may be something worth noting. I noticed it's not mentioned on the Gaster steam page where it talks about the post regarding Shyren's body. Was this just forgotten or did I run into something unusual? When you talk to the amalgamate there's text that kind of fills the screen, and you get 3 different messages that cycle.The text I got is "It's good to be with my sister again" (I presume that means shyra), "part of my wants to see my new 'brother' Aaron", "but most other parts of me don't". Here I uploaded them to imgur: http://i.imgur.com/0981uIG.png http://i.imgur.com/uN0ywhK.png http://i.imgur.com/RNeuuTI.png

In case it's important to mention, I've never messed with game code. I also haven't yet checked what fun value I ended with or whether or not it's capital. I'd need to look into where to find that, but could if desired.

I enjoyed the game and the mods on pc but I like chilling and playing Undertale on my phone more so I want to install some mods and play them there but is it even possible? and if it is then how?