Everest vs Hell2Modding

Everest is a free, open-source mod loader and modding API for Celeste. It lets players use mods with custom maps, texture replacements and code-driven additions such as sound effects, graphics, dialogue and campaigns, without changing original game files. An in-game updater and dependency downloader help manage mods. The cross-platform Olympus installer can install mods with one click from its Download Mods section or GameBanana, or from ZIP files and folders; players can also switch between Everest and vanilla Celeste through Olympus or the title screen. Everest supports Windows, macOS and Linux and works with Celeste from itch.io, Steam and Epic Games, but not the Windows Store version. Enhanced Debug Mode offers live map reloading, code and asset reload shortcuts, an improved map viewer and console logging. The project is MIT-licensed and maintained by volunteers. Olympus is actively being worked on and may fail, and the project directs users to the Celeste Discord’s #modding_help channel for bug reports and questions.

Hell2Modding is a free modding plugin and framework for Hades II, for players modifying the game and developers building mods for it. It uses ReturnOfModding as its base and lovely-lib for runtime patching. The main loader, d3d12.dll, goes beside Hades2.exe in the game's Ship folder; removing or renaming that DLL returns the game to an unmodded state. The project links to instructions for installing with r2modman, a community-created mod template, and the Hades Modding Discord. It lists Windows support and Steam Deck support through Proton, and uses injection to load mods. Plugin support, load-order control, and mod profiles are listed. The GitHub repository lists an MIT license. Its Releases page has a Nightly build created by GitHub Actions, with a SHA256 value and instructions for checking the downloaded DLL. The listed plan is free, with no plan limits stated.