An open API service indexing awesome lists of open source software.

Undertale

Undertale is a video game by Toby Fox. Released in 2015, The game is about the player controlling a small child who fell into a pit near mount ebott. And separated by a magical barrier created by the humans in the past. You have to go though a journey back to the surface while coming across monsters. You can opt to spare monsters or kill them. There are many endings depending on how you play the game

https://github.com/UnderminersTeam/UndertaleModTool

The most complete tool for modding, decompiling and unpacking Undertale (and other GameMaker games!)

decompiler deltarune editor game-maker game-maker-studio game-maker-studio-2 gamemaker gml undertale unpacker

Last synced: 20 Feb 2026

https://github.com/underminersteam/undertalemodtool

The most complete tool for modding, decompiling and unpacking Undertale (and other GameMaker games!)

decompiler deltarune editor game-maker game-maker-studio game-maker-studio-2 gamemaker gml undertale unpacker

Last synced: 08 Jan 2026

https://github.com/colinator27/dogscepter

A work-in-progress modding tool geared toward UNDERTALE/DELTARUNE

deltarune modding modding-library modding-tools undertale

Last synced: 21 Jul 2025

https://github.com/seanpm2001/underune_maker

Underune maker is a map maker for Undertale and Deltarune. It contains all the assets, and you can make and customize as many rooms as you want.

cplusplus cpp cpp-language deltarune gaming gpl3 gplv3 map-maker md pc-gaming txt undertale underune underune-maker video-games wiki yaml yml

Last synced: 13 Oct 2025

https://github.com/bigcoke233/floweystimemachine

🌻 小花的时间机器 / Undertale 存档修改器

javascript undertale

Last synced: 10 Apr 2025

https://github.com/sawby08/underlove

UNDERTALE battle engine for the LÖVE game framework!

engine game love2d rpg undertale

Last synced: 15 Apr 2025

https://github.com/sertrafurr/deltarune-debug-script

Here is a script to enable the Debug mode on all Deltarune Chapters ! Feel free to report any error

code csharp deltarune lua script scripts undertale undertalemodtool

Last synced: 01 Jul 2025

https://github.com/SertraFurr/Deltarune-Debug-Script

Here is a script to enable the Debug mode on all Deltarune Chapters ! Feel free to report any error

code csharp deltarune lua script scripts undertale undertalemodtool

Last synced: 01 Jul 2025

https://github.com/kckarnige/BadTimeReimagined

* here we go, again. | A Bad Time Simulator mod

bad-time-simulator mod simulator undertale

Last synced: 20 Aug 2025

https://github.com/vladistep/rainbow_trail_effect

The rainbow trail effect of Asriel Dreemurr from Undertale.

animation fabricjs html5 js rainbow undertale

Last synced: 22 Mar 2025

https://github.com/benlubar/tobytas

A tool-assisted speedrun of Toby Fox's Undertale and Deltarune, played simultaneously with the same inputs.

deltarune tool-assisted-speedrun undertale

Last synced: 05 Mar 2025

https://github.com/grazen0/undertale-dialogues

A rest API for generating Undertale dialogue boxes.

canvas expressjs herokuapp rest-api undertale

Last synced: 15 Jan 2026

https://github.com/vladistep/undertalerusinstaller_gui

Установщик русификатора для Undertale/NXTale.

crossplatform crossplatform-gui gamemaker gui installer modification translation undertale

Last synced: 19 Apr 2025

https://github.com/lazypwny751/grubtale

Undertale theme for Grub.

grub grub-theme grub2-theme undertale

Last synced: 27 Dec 2025

https://github.com/kvba0000/df-localchat-gen

Generate any message that will look like it was from DF!

deltarune dontforget undertale

Last synced: 19 Jan 2026

https://github.com/skyuoi/zenith

A game about undertale and terraria written in rust,godot and gdscript under rapid development

game game-dev game-development gamedev gdscript godot godot-engine godot-game godot4 godotengine rust rust-lang terraria undertale undertale-au

Last synced: 24 Oct 2025

https://github.com/mrpowergamerbr/friskeuphoria

📦 A WIP unpacker/repacker for Undertale v1.06

kotlin modding undertale

Last synced: 11 Nov 2025

https://github.com/dmuth/undertale-deltarune-resources

Undertale and Deltarune Resources

deltarune undertale

Last synced: 30 Jan 2026

https://github.com/tionlab/stt-tts_aichatbot

STT-TTS Temmie AI Chatbot. Using Python

chatbot stt temmie tts undertale

Last synced: 28 Apr 2025

https://github.com/evertondev2002/undertale-ultra-basic

Jogo simples com o módulo Turtle do Python | Primeiro trabalho individual | Fundamentos de programação

python3 turtle undertale

Last synced: 15 Oct 2025

https://github.com/patoflamejantetv/chihuahua

VB.NET Image and Sound testing, displays Samsung's Chihuahua Easter Egg

chihuahua demo dog dotnet samsung test undertale vb-net visual-basic visual-studio

Last synced: 24 Oct 2025

https://github.com/fulcrum101/ai_tic_tac_toe_undertale_style

TicTacToe Undertale style in terminal with ai (greedy epsilon algorithm).

ai epsilon-greedy game machineleraning ml pygame terminal-game tic-tac-toe undertale

Last synced: 04 Mar 2025

https://github.com/turitoyuenan/planet-kearth

A (Discontinued) Worldbuilding Project by Turito and BeeBee

undertale undertale-au worldbuilding

Last synced: 05 May 2025

https://github.com/lazypwny751/flowey

"flowey" is like "cowsay" but for undertale universe.

ainsi chafa cowsay cowsay-clone deltarune ponysay undertale

Last synced: 27 Aug 2025

https://github.com/y2bd/whatshisnameaga.in

What's his name again?

meme undertale videogame

Last synced: 12 Oct 2025

https://github.com/bradensmg/love2d-undertale

canned! this isn't coded well (as presumed because this is my first love2d project). unprivated so people can check it out anyways lol

engine love2d rpg undertale

Last synced: 03 May 2025

https://github.com/sawby08/love2d-undertale

canned! this isn't coded well (as presumed because this is my first love2d project). unprivated so people can check it out anyways lol

engine love2d rpg undertale

Last synced: 02 Aug 2025

https://github.com/ryandvl/undyne-game-py

Undyne Fight - Undertale Fan Game made in Python with Pygame

game pygame python undertale

Last synced: 30 Jun 2025

https://github.com/sjkim04/uuig

A Python game heavily inspired by UNDERTALE.

game python3 undertale

Last synced: 20 Jun 2025

https://github.com/orbitaldot/utmc

A chunk-based mining sandbox within Undertale

undertale undertale-mod

Last synced: 04 Feb 2026

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