r/Underminers 7h ago

[Question] How does damage work in the ERAM fight?

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3 Upvotes

When you take damage in the ERAM fight a damage indicator appears next to Kris. Does ERAM have an actual ATK stat, or are these set numbers? Does armor effect it? Are the numbers even real, considering we have a health bar in the Mantle game?


r/Underminers 17h ago

Help Me! "8-bit operator jve" space character size

5 Upvotes

Hello, I'm learning GML and have been using 8bit op jve as the font, just like undertale.

The thing is, even though I have its size as 12 like in the ut source code, the spaces (" ") seem to be half of the size that they are in undertale. Idrk if it's an intentionally programmed thing, a setting or just a different way to import the font.

I'd love to hear from who knows more than me, thank you.


r/Underminers 1d ago

[Question] What causes the wall-humping glitch in Undertale?

19 Upvotes

r/Underminers 1d ago

Help with Tenna Editor

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7 Upvotes

I recently loaded my save to fight Flowey again, but it was bugged; Kris and Susie from the Light World were walking slowly (like in the ending sequence) in the pink room. Interactions still work, but Ralsei isn't there. I was wondering if you could help me by telling me what to enter for "Current Room" and "Plot Point."


r/Underminers 2d ago

Help Me! Someone more knowledgeable please help me do this.

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39 Upvotes

Im doing a challenge where reddit decides how to make the Spamton fight harder and this is one of the ideas I need to add. But after snooping around for almost an hour or so all I was able to do was visually change the bar's location in obj_attackpress draw event but I was unable to find how to actually change its location in the logic.


r/Underminers 3d ago

How would a player control a Bullet hell boss, while the Enemy is Doging like a player would? (image diagram for explanation)

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3 Upvotes

r/Underminers 3d ago

Help Me! G3M does not load mods

3 Upvotes

I've been wanting to play Deltarune with mods, and I've got a few. The problem I'm having is that G3M, for some reason, even though it says which mods are active and which aren't (based on playtime), doesn't apply the changes to the game. For example, the sprite consistency mod and the local multiplayer mod don't work.

Is there something I'm missing?


r/Underminers 3d ago

Help Me! Downpatch to version 1.04

6 Upvotes

I'm trying to downpatch deltarune to version 1.04 for the green knight mod, but all of the patches that people share are 1.05, which aren't compatible. Can someone help me? Thanks.


r/Underminers 3d ago

Help Me! How do I give party member spells in Utmt?

3 Upvotes

I want to give specific party members spells without editing the save file, does anybody know how?


r/Underminers 4d ago

ive got a modded chapter 1 deltarune file and i wanna unmod it.

5 Upvotes

i cant verify the integrity of files (no steam deltarune), i need like a full new replacement data.win because yea,,,, i wanna use another mod (i modded chapter 1 to have multiplayer), i wanna use kaizo knight and i dont have chapter 3 modded. its saying im patching the wrong file.

i scanned the url bzzhr from steamrip using virus total and THIS is what happened. (same thing with other one)


r/Underminers 5d ago

Help Me! What is the issue here?

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10 Upvotes

r/Underminers 5d ago

Help Me! How do i add spells to battles?

1 Upvotes

Im trying to make the knight harder (By adding an extra zero to it's HP) and i wanna add red buster and dual heal, uh how?


r/Underminers 5d ago

Help Me! does anyone know where the script that gives you the starting items of chapter 5 is?

3 Upvotes

for example; when you make a new save file, you start with items like Winglade, where is the script that has the items located?


r/Underminers 8d ago

Help Me! Flowers to Artists

5 Upvotes

Most of the lyrics to Flowery's boss theme are in the "Strings" section, though when the song says "A life for-ever for Flowers", the "Flowers" part just REFUSES to change. I've replaced EVERY instance of just the word "Flowers" in the Strings section, but it WON'T change, so that's annoying, but it is probably in the "Sprites" section, since it does a special lil' effect thing.
Link to video (to help visualize my problem better): https://youtu.be/blGRVhIW01I


r/Underminers 9d ago

Sprite(s) does anyone have the petal sprite of prism blow?

4 Upvotes

i lowk need it for something im making!


r/Underminers 9d ago

Help Me! Fields of Mistria - Can't find data.win file

3 Upvotes

I hope this is okay to post here, wasn't sure where else to go.

I'm trying to use the UTMT for Fields of Mistria, but I can't seem to locate the data.win file. Things I've tried:

  • Made sure I was in the right directory (where the game is installed: C:\Program Files (x86)\Steam\steamapps\common\Fields of Mistria)
  • Made sure 'File name extensions' and 'Hidden items' is checked under View in File Explorer
  • Uninstalling Mods, Verifying Files on Steam.
  • Uninstalling and re-installing the game (including deleting the 'Fields of Mistria' folder from steamapps/common.

No matter what I've tried, the data.win file won't generate. Does anyone have any ideas on how to fix this?

This is what my installation directory looks like

EDIT: It turns out this game doesn't have a data.win file anymore because they changed the engine the game uses back in July 2026. Please disregard (but I'll leave this post up in case anyone was confused me like and comes across this in google search). Thanks for the help everyone!


r/Underminers 10d ago

I cant see my Undertale and Deltarune Save files

2 Upvotes

i checked in the game folders, in appdata theyre none existant, tho my games do work with files like i have files but theyre not in my pc. I searched everywere but it said nomatching files in my local files


r/Underminers 12d ago

How did Toby animate Tenna's Wobble?

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23 Upvotes

r/Underminers 12d ago

Help Me! How to port X-slash from Chapter 2 to Chapter 1

5 Upvotes

r/Underminers 12d ago

Help with sounds and sfx not being heard.

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2 Upvotes

r/Underminers 12d ago

Information Found how is the known quantity sprite selected?

2 Upvotes

im new to modding so i thought this would be the best place to ask.
recruits that arent supposed to be in the game show up as known quantity, but the sprite is randomly selected. where is the code that selects it so i can reuse it in my own mod where i need to select a random sprite?

sorry if this is worded a bit weirdly, english is my second language


r/Underminers 12d ago

Help Me! What is the code that makes party members use different sprites in specific fights?

2 Upvotes

I wanna make a mod that makes Ralsei use his 'mad' sprites from the Flowery fight in the Knight fight, which I was gonna do by editing whatever code normally makes party members use different sprites in specific fights (like Susie's serious sprites in various fights and Ralsei's 'mad' sprites in the Flowery fight) and edit it to make Ralsei use those sprites in that fight, but I can't find it. Can someone help me? (I also need to import Ralsei's 'mad' sprites from chapter 5 but I can do that by myself)


r/Underminers 12d ago

Deltarune lang folders + text files

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2 Upvotes

r/Underminers 14d ago

[Question] Does... this variable ever get used in Chapter 5?

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180 Upvotes

If not, is there any funny looking variable like this in this chapter lol


r/Underminers 15d ago

[Question] I'm curious, what's the technical reason for Dark World sprites being huge if you force them into the Light World?

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1.7k Upvotes

I was watching a vid where they forced the Platformer Mode into places where it shouldn't be, and the Dark World sprites appeared huge when forced in the Light World. Why is that?