Welcome to the Deltamodder's guide!

Here are the current guides we have on this website:

• Getting started with deltamodding: This tutorial teaches you how to get started from stage zero.

• The inner workings of DELTARUNE: This guide is meant to document the code that makes our favorite game work.

• GameMaker's Secrets: Have you ever wanted to know how the GameMaker engine that Deltarune and countless other games runs on works, and how tools like UndertaleModTool are able to parse GameMaker games? Well, you have come to the right place!