
Modrinth · Minecraft mod
Atlas Core
A library (currently only for configs) used by Atlas Development projects
Quick answer
Which Atlas Core release matches 1.20.1 Forge?
Atlas Core 1.1.3-1.20.1-Forge targets 1.20.1 with Forge. Installation on the client is optional. Installation on the dedicated server is optional. 1 required mod needs checking.
Where it goes
Is Atlas Core required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Atlas Core 1.1.3-1.20.1-Forge need?
1.1.3-1.20.1-Forge on 1.20.1 Forge. Every mod below is checked against that same setup.
Install project Aqlf1Shp, Cloth Config API (Fabric/Forge/NeoForge) first. 1 required mod still needs checking for this exact setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Atlas Core without breaking your instance.
Built for Atlas Core 1.1.3-1.20.1-Forge on 1.20.1 Forge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.1.3-1.20.1-Forge. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install project Aqlf1Shp, Cloth Config API (Fabric/Forge/NeoForge) first. 1 required mod still needs checking for this exact setup.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.1.3-1.20.1-Forge. It opens that exact file at the source.
About this project
What does Atlas Core add?
Atlas Core
A mod library for Atlas Projects
A simple library that currently provides a command library and a robust config system, if admittedly incomplete.
However, it will be expanded to suit more needs as time progresses, and improvements to the config will be made.
Commands
As of right now, the command library consists of adding an argument type that allows you to use interchangeable arguments, as in, if certain arguments are not needed, then one can have the user specify the arguments provided with proper suggestions in the format <arg_name>=<arg_value>.
However, in the future the plan is to create a parameters argument which allows you to insert [--someArg value -someOtherArg], matching usual command line parameters, with suggestions for what to input.
In addition, eventually an easier way to achieve wanted results for vanilla argument types and ones which are added by Atlas Core when they are used as opts arguments.
Configs
By default, configs are stored in ./config/<mod_id>/<config_path>.json, which is where you will be able to access and edit them.
If the config has a GUI, it will appear in the Atlas Configs menu inside of Options on both pause screen and title screen. If Mod Menu is installed, the Atlas Configs menu appears as the config for Atlas Core. If a mod has an attached default config with a screen, it will become the config screen for that mod in Mod Menu.
Configs can also be read or manipulated using the command /atlas_config, which lets you reset, read, or reload configs all at once, reset, read, or reload a particular config, or edit, reset, or retrieve the value of a specific option.
For mod developers
Intrested in using this for your mod?
I recommend checking out the README to see how to implement it in your mod.
Project description from Modrinth.
Pick your setup
Atlas Core by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
2 loader builds26.1.2
3 loader builds26.1.1
3 loader builds26.1
3 loader builds25w46a
2 loader builds25w45a
2 loader builds25w44a
2 loader builds25w43a
2 loader builds25w42a
2 loader builds25w41a
2 loader builds1.21.11-pre3
2 loader builds1.21.11-pre2
2 loader buildsShowing the newest 12 of 34 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Atlas Core versions and loaders
1.1.3-1.20.1-Forge
atlas-core-forge-1.20.1-1.1.3.release.jar
1 Jun 2026
1.1.2.beta.6-1.20.1-Forge
atlas-core-forge-1.20.1-1.1.2.beta.6.jar
18 Nov 2025
1.1.2.beta.5.1-1.20.1-Forge
atlas-core-forge-1.20.1-1.1.2.beta.5.1.jar
17 Nov 2025
1.1.2.beta.5-1.20.1-Forge
atlas-core-forge-1.20.1-1.1.2.beta.5.jar
17 Nov 2025
Looking for an older file? The official Modrinth project page is in Resources.