Everest - Celeste Mod Loader

Everest is an open-source mod loader and modding API for Celeste, allowing you to create custom map packs, texture replacements and code mods to your heart's content.

Features

granny laughing We're too busy and don't have time to update this list.
It would also be longer if that Berry guy would've ignored us!

In-game updater and dependency downloader
Cross-platform: Windows, macOS, Linux
- Works with itch.io, Steam and Epic Games.
- Doesn't (and probably won't ever) work with the Windows Store.
TASBot-verified
Easily switch between Everest and vanilla Celeste from the title screen or Olympus
Load mod files without messing with your original files:
- Custom sound effects
- New decals, tilesets, sprites and other graphics
- Custom character dialogues
- Completely new maps and campaigns
- And anything else thanks to code mods
Sound test - including easter eggs hidden in Celeste by the legendary Kevin Regamey
Quality of life improvements:
- Gets you out of most softlocks (disabled for vanilla maps)
- Discord Rich Presence - share your stats live
- Use your keyboard to rename save files
Enhanced Debug Mode:
- Toggle the hidden debug mode in-game - no save file edits needed
- Live reloading of the map you're working on, both automatic and via F5
- Reload all code and assets quickly using CTRL + F5
- F6 to open the improved map viewer - now without losing progress and with SHIFT / CTRL modifiers!
- Got a keyboard without ~ and want to open the console? Press .
- Speaking of console: Live log output using the --console launch flag
A lot of unhardcoded and customizable entities for your custom maps
And much more that did not fit into this list. Whew!

Installing Everest

Olympus - Cross-platform Everest Installer

theo saying yolo YOLO! This fancy tech is very fresh so don't be surprised if it blows up in your face.
Please report all bugs to the Everest Team in #modding_help on the Celeste Discord server!
Feel free to scroll down to the manual installation instructions if this doesn't work.

If you are on Windows:
- Download olympus.exe from GameBanana and run it.
  - ... or download it directly from GitHub.
- If Windows SmartScreen blocks it, tell it to run anyway.
- If your antivirus blocks it, let them analyze it as a false positive and if possible, send them here.
  Olympus can update itself and injects Everest code into Celeste.exe but both are open-source.
If you are on macOS:
- Download the latest autobuild.
  Click the "5 published" button under "Related", then "macos.main" to download it.
- Unzip the zip inside of the zip. Zipception!
- Drag the Olympus app into your Applications folder.
- Hope that it works.
  Sadly our code monkeys top scientists aren't trained with Macs.
  You might need to right-click, open, then allow running applications from unverified developers.
  If you are a macOS user and are willing to help us test stuff: let us know on Discord!
If you are on Linux:
- Pray to dependency satan.
- Download the latest autobuild.
  Click the "5 published" button under "Related", then "linux.main" to download it.
- Unzip the zip inside of the zip. Zipception!
  The resulting folder will be your Olympus "installation" folder.
- Run install.sh in a terminal to install the one-click installer handler and application icon.
- Run Olympus from your applications list (or olympus in the folder) and hope that it works.
  If the bundled Love2D doesn't work and your distro provides it via the package manager, try that.
  If Olympus still doesn't work, feel free to ask one of the other 11 Linux users on the Celeste Discord.
No matter what platform you are on:
- If there's a red ! on the options button, update Olympus first.
- Press on the "Manage" button on the left side.
- Add your Celeste installation(s), change the name(s) as you see fit.
- Go back (top left corner) and press the huge Everest installation button.
- Select an Everest version and hit the long "Install" or "Update" button.

Everest.Installer for Windows (old)

Download everestinstaller.exe and run it.
If Windows SmartScreen blocks it, tell it to run anyway.

Cross-platform manual installation

maddy thinking If you need to scroll down this far, please let us know why so we can improve Olympus.
If you're on Linux, feel free to try the unofficial EverInst at your own risk.
For now, please hold tight with the following manual installation instructions!

Download the latest autobuild for the branch you want:
- stable branch: best if you don't need any new features and just want to play mods.
- beta branch: best to develop your mod or to have others test your mods on, with earlier access to new features.
- dev branch: gets updated very frequently as development of new features goes on.
Click the "1 published" button under "Related", then "main" to download it.
Open the directory where Celeste.exe is located:
- With Steam: right click Celeste in your library, then "Manage" > "Browse local files".
- On macOS: follow the step above if you own the game on Steam. Right click the Celeste application, and choose "Show Package Contents". After that, go into the Contents directory, then MacOS.
Open the main.zip file you downloaded, then copy the contents of the main folder to the directory where Celeste.exe is: Celeste.Mod.mm.dll should be right next to Celeste.exe.
Run MiniInstaller.exe. On Linux / macOS, you will need to run it through mono:
- Install the mono runtime.
- Open a terminal window, then navigate to where Celeste is (cd <Celeste installation folder>). On macOS, you can drag the MacOS folder to the terminal window instead of typing the path to the Celeste installation folder.
- Run the following command: mono MiniInstaller.exe

Installing mods

Find a mod that you want to play with on GameBanana.
Press the 1-click installation button.
- If the 1-click installer doesn't work, put the mod .zip into the Mods directory where Celeste is.
- For prototyping and development, feel free to use a folder instead of a .zip
That's it. No need to extract anything.