These are the required and recommended software for creating mods for Celeste.

Table of Contents

Click to expand Table of Contents

• General
• Custom Maps
• Texture Packs
• Code Mods

General Software

• A copy of Celeste 🔗 from Steam, itch.io, or Epic Games.
• Everest 🔗 for loading and playing custom maps and other mods.
• Any text editor
• Any program that can create .zip archive files (7zip 🔗 is a free and reliable option).

⚠️ Copies obtained from the Microsoft Store or XBox Game Pass cannot be modded. This is due to a number of reasons as described here 🔗(Discord message link).
⚠️ Console versions cannot currently be modded, although the Nintendo Switch has been modded in the past.
⚠️ We are unable to support pirated copies of Celeste due to not knowing what modifications may have already been made to the game. You are unlikely to get help fixing your copy if it does not work.

Custom Maps

• Lönn 🔗 for creating maps.
• (Optional) FMOD Studio Version 1 🔗 for adding custom music.
• (Optional) Any art program suitable for pixel art (LibreSprite 🔗 is a good free option).

Texture Packs

• The Vanilla Graphics Dump 🔗 to use as a reference for textures and their locations.
• Any art program suitable for pixel art (LibreSprite 🔗 is a good free option).
• (Optional) FMOD Studio Version 1 🔗 for replacing music and sound effects.
• (Optional) Any art program suitable for high-resolution art (GIMP 🔗 or Krita 🔗 are free options) for drawing UI elements.

Code Mods

• Visual Studio 2015 or newer or another IDE with C# language support, or the cross-platform dotnet cli 🔗.
• You need to have the .NET Framework >=4.5.2 targeting pack installed. If you are using Visual Studio 2022 (latest), either install the .NET Framework 4.5.2 Targeting Pack 🔗 manually or install the .NET Framework 4.6 targeting pack and make your library target that instead (if you are using a template, this may require manually editing the TargetFramework in your .csproj file).