Deimos Mod is a configuration and data generation library mod that helps create configurable content and in-game config options for Minecraft on Fabric, Forge, NeoForge, and Quilt. It is designed for cross-loader use across many Minecraft versions, from 1.18 up to 1.21.11 and the 26.1.x releases listed here.
The main problem deimos mod solves is the hassle of managing configs, recipes, and loader differences across multiple Minecraft setups. Instead of juggling separate systems or relying entirely on JSON files, this library appears to streamline configuration work in a more flexible way, which helps explain why it has reached nearly 929K downloads on Modrinth.
Key Features of Deimos Mod
- Cross-loader configuration support — Deimos works across Fabric, Forge, NeoForge, and Quilt, which is its biggest practical advantage. If you use mods across different loaders, that shared approach makes setup feel more consistent and reduces the friction of switching environments.
- In-game config display — On Forge and NeoForge, Deimos can show config options natively in-game, and on Fabric it can do so with Mod Menu. That matters because changing settings from inside Minecraft is faster and more convenient than hunting through external files every time you want to tweak behavior.
- Configurable recipe generation at startup — Deimos can create recipes when the game starts, which makes those recipes configurable instead of fixed. For players and modpack users, that means content can be adjusted more easily without relying on a pile of static recipe files.
- Less dependence on JSON files — The author specifically notes that Deimos reduces the need to work directly with JSON files. That is useful because version updates can become less tedious when fewer manual data files need to be rewritten or maintained.
- Easier version-to-version maintenance — One of the stated goals of Deimos is to make changing Minecraft versions easier and less painful. In practice, that makes this library especially appealing for projects that need to stay available across a long list of game versions.
- Shared library approach for one developer workflow — Deimos was made so the author could use one config library across multiple loaders and Minecraft versions. That kind of unified workflow usually benefits anyone who wants cleaner mod support rather than a separate system for every platform.
Screenshots
How to Install Deimos Mod
- Choose the correct version of Deimos for your Minecraft build, using the listed releases such as 1.21.11, 1.20.1, 1.19.4, or 1.18. Make sure the file matches your loader.
- Install one supported loader first: Fabric Mod Loader, Minecraft Forge, NeoForge, or Quilt Loader.
- Place the downloaded Deimos file into your Minecraft
modsfolder. If another mod requires Deimos as a dependency, keep both files in the same folder. - Start Minecraft with the same loader profile you used for installation. On Fabric, add Mod Menu if you want in-game access to config screens.
- Open the game and confirm the mod list loads correctly. If a supported mod uses Deimos for config or recipe handling, those options should then be available in the appropriate environment.
Requirements & Compatibility
| Item | Details |
|---|---|
| Mod Type | Library |
| Supported Loaders | Fabric, Forge, NeoForge, Quilt |
| Required Loaders | Fabric Mod Loader, Minecraft Forge, NeoForge, Quilt Loader |
| Minecraft Versions Listed | 26.1.2, 26.1.1, 26.1, 1.21.11 through 1.21, 1.20.6 through 1.20, 1.19.4, 1.19.2, 1.19.1, 1.19, 1.18.2, 1.18.1, 1.18 |
| Author | MarsThePlanet |
| License | MIT |
| Category | Minecraft Mods |
What's New
- Updated to version 26.1.2.
- The latest listed update date is 2026-04-09.
- The current release continues support across NeoForge, Forge, Fabric, and Quilt.
- The project remains available under the MIT license.
Pros and Cons
Pros
- Supports four major Minecraft loaders.
- Can display config options in-game, including Fabric with Mod Menu.
- Helps reduce reliance on JSON files for configurable content.
- Covers a wide spread of Minecraft versions.
- Open-source with a public source repository.
Cons
- It is a library, so it may not add obvious gameplay features on its own.
- Some in-game config functionality on Fabric depends on Mod Menu.
- Its benefits are clearest when another mod requires it or uses its systems directly.
Alternatives to Deimos Mod
- Mod Menu — A useful companion on Fabric because Deimos can use it to display configuration screens in-game.
- MidnightLib — A related library since the configuration side of Deimos is based on MidnightLib.
- Laser Bridges and Doors — One of the author's own mods and a practical example of the kind of project that can use Deimos in the wild.
Download Deimos Mod
| Minecraft Version | Fabric | Forge | NeoForge | Quilt |
|---|---|---|---|---|
| For Minecraft 26.1.2 | Download | Download | Download | Download |
| For Minecraft 26.1.1 | Download | Download | Download | Download |
| For Minecraft 26.1 | Download | Download | Download | Download |
| For Minecraft 1.21.11 | Download | Download | Download | Download |
| For Minecraft 1.21.10 | Download | Download | Download | Download |
| For Minecraft 1.21.9 | Download | Download | Download | Download |
| For Minecraft 1.21.8 | Download | Download | Download | Download |
| For Minecraft 1.21.7 | Download | Download | Download | Download |
| For Minecraft 1.21.6 | Download | Download | Download | Download |
| For Minecraft 1.21.5 | Download | Download | Download | Download |
| For Minecraft 1.21.4 | Download | Download | Download | Download |
| For Minecraft 1.21.3 | Download | Download | Download | Download |
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Frequently Asked Questions
What is Deimos Mod used for?
Deimos Mod is used for configuration and data generation in Minecraft mods. It is a library that can generate config files, show config options in-game, and create configurable recipes when the game starts.
Do I need Deimos Mod if I only want new gameplay content?
No — Deimos is mainly a support library, not a content-focused gameplay mod by itself. You should install it when another mod requires it or when you specifically want the library features it provides.
Does Deimos Mod support Fabric, Forge, NeoForge, and Quilt?
Yes — the listed supported loaders are Fabric, Forge, NeoForge, and Quilt. That broad loader coverage is one of the main reasons the mod stands out as a utility library.
Can Deimos show config screens inside the game?
Yes — Deimos can display configs in-game on Forge and NeoForge natively, and on Fabric with the help of Mod Menu. That makes it more convenient to adjust settings without editing files manually every time.
Does Deimos Mod work on many Minecraft versions?
Yes — the provided version list spans from Minecraft 1.18 up to 1.21.11, along with 26.1, 26.1.1, and 26.1.2. You still need to choose the exact file that matches both your game version and your loader.
Is Deimos Mod open source?
Yes — Deimos is published under the MIT license and includes a public source URL. That is useful if you want to review the project or track its development updates.
