Undertale, Made With GameMaker

Welcome to UNDERTALE - the friendly RPG where no-one has to die, developed by Toby Fox in the GameMaker engine. Experience the indie legend for yourself.

How Undertale Made Millions With No Marketing Budget - Daniel Parente Blog

Undertale Engine by jevilhumor

RPG Maker - Undertale game by TheNightSpectator on DeviantArt

GameMaker, the engine behind Undertale and Hotline Miami, is now free

How Undertale Made Millions With No Marketing Budget - Daniel Parente Blog

Steam's Made with GameMaker Sale has Undertale, Crashlands, and more on the cheap

Nykra dev now intends to bring the game to Switch thanks to GameMaker Studio 2 support, prioritized over other versions

Is it possible to make an Undertale battle using GMS Studio 2 drag and drop? : r/gamemaker

Modern Undertale Fangame Engine by novaquantum

Game Maker developer YoYo Games bought by browser developer Opera

Undertale - The Cutting Room Floor