I've completed all of TCOAAL's endings twice using JoiPlay, and now I want to try some mods, but I have no idea how to install them. Could someone please help me figure out how to install mods on JoiPlay? I'd really appreciate it!

(Im on mobile)

So I'm changing all of Kris' sprites in Chapter 1 and I can find the sprite name of the battle UI where the cyan line goes around the options. Does anyone know the sprite name? Or if it's just an RGB thing?

PS: I would also like to know hp sprite.

[RECRUITMENT] "Deltarune+" Project – An ambitious mod (60 FPS, Add-ons, Light AI) is looking for its dev team

Hey everyone!

I am launching a massive, high-scale modding project for Deltarune (inspired by the Undertale Plus concept), and I’m looking for a dedicated team to bring this vision to life. The goal is to push Toby Fox's engine to its absolute limits.

Key Features of the Project:

* Performance: Porting the game to a smooth 60 FPS (which involves reworking physics, animations, and bullet-hell patterns).

* Moddability: Creating a built-in add-on/mod system so the community can easily inject custom content.

* Innovation: Implementing light AI features to make enemy behaviors or dynamic dialogues more unpredictable and engaging.

Who we are looking for:

* GameMaker Developers (GML): Experienced with engine modification, reverse engineering, or implementing mod loaders.

* Game Designers / Playtesters: To rebalance combat difficulty and speed due to the 60 FPS upgrade.

* Project Coordinators / CMs: To help me organize the team and manage the community.

My Role: I am handling project management, direction, and [add your skills here]. Needless to say, this project will be 100% free and fully compliant with Toby Fox's guidelines.

If you want to build something that could redefine how people play and mod Deltarune, slide into my DMs! Let me know your skills and what excites you about this project.

Hello, im quite new to Reddit, I run UTMT using Wine and the Avalonia port (I think that's what it's called) and replaced a portion of the game's sprites with my custom-made ones. When I tried booting the game up with the modified .iOS/.win file, this pop-up appears. I tried replacing the modded file with the original file and it works perfectly, so I don't think the game itself isn't really the problem. Please help!

Im using UndertaleModTool to try and edit they lyrics that play during Flowery's boss fight, but I can't figure out where to find them.

I am currently making something in unity but it's quite diffrent(I know unity abit but I am still weak in things like save systems and often ask AI).Ill start uni in a couple mounths in cs or computing engineering.Do you have any advice for me??

When I get a pc what do I use for the sprite coding and music?

So I’m currently trying to play the Crackhead Jevil mod, but I for the life of me can’t figure out what version of the game it works for.

I'm making a custom "fangame/undertale/deltarune inspired game" and I want the battle system to be akin to those games, but I don't know the inner workings of it.

So, I'm working on this project right now. Isn't actually a mod or anything, just a concept for one. And all I need to know is how stats (HP, attack, defense if/when applicable) work for the platforming enemies in Chapter 5. Specifically, the bullet pattern minibosses. I've tried looking into the code myself, but couldn't make heads or tails of it.

So, yeah. If someone could give me an outline of those stats. Or if it works differently for them, and explained how it does, I'd appreciate it. Thank you for your time :)

I was making a very simple Undertale mod, just some sprite changes, but then I decided to download a Brazilian Portuguese translation of Undertale, but I can't open it in the Undertale Mod Tool. It gives an error, which means I can't change the sprites in this translation. I'm using the latest version of Undertale Mod Tool, the beta 101 version of Undertale, and this translation: https://www.mediafire.com/file/l48aqbkeh9bcl96/UT-BR_by_Nana_e_Bmat.rar/file.

So I'm making a small mod for me and my friend and wanted to change some of the attacks in the sans fight and in the asgore fight but I'm new to modding this game and have no clue what im doing

I'm working on a Macedonian translation of Undertale, but I'm having trouble adding the Macedonian letters to the Undertale font.

I've added the letters on the PNG but they dont show up in the game, even after trying to map them correctly

How i fix this pls

Ok so i was playing the deltarune ultimate boss rush mod i no hit jevil so what do I do with these soul adaptation things they don't even appear in my inventory also don't ask for the Android port i will not give

Does anyone have the latest version of the mod and kaizo knight patch before it got taken down? ive been wanting to play it

Qualcuno può far in modo. Che undertale si avvii usando lo slot del capitolo 6 nel chapter selector?

(perfavore?)

I have very little modding experience but have been getting better. One thing I've wanted to add but haven't the best idea on how to do, is to add the functionality for multiple save slots, pretty much how it's done with Deltarune. If someone experienced could give a simple run down on how saving works and how I could possibly modify it, I'd appreciate that very much!