Zero CORE 2 in All the Mods 10: To the Sky

All the Mods 10: To the Sky 2.1.0 ships version 1.21.1-2.4.21 · First seen in 1.0

Checked Oct 15, 2026All the Mods 10: To the Sky 2.1.0Sources: All the Mods 10: To the Sky 2.1.0 modlist.json

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Also in 2 other packs →

Zero CORE 2 is a mod in All the Mods 10: To the Sky 2.1.0, where it is version 1.21.1-2.4.21. Utility mod and multiblock API (Summary from the mod's Modrinth page.)

Zero CORE 2 guide for All the Mods 10: To the Sky

Written for All the Mods 10: To the Sky 2.0.4 · also fits 1.0 to 2.1.0 · updated Oct 15, 2026

Last verified for All the Mods 10: To the Sky v2.1.0 on Oct 15, 2026 · text last changed Oct 15, 2026

Also applies to:All the Mods 10 0.41 to 8.3All the Mons 0.3.0-beta to 1.3.0

Sections
4

None of these sections are written for this pack; 4 are shared from another pack's guide.

Every recipe and number here was checked against All the Mods 10: To the Sky 2.1.0, read from the running game on Oct 15, 2026.

What is Zero CORE 2?

Same as in the All the Mods 10 8.1 guide

Zero CORE 2 is in the pack at version 1.21.1-2.4.21. It has been in the pack since version 2.25 or earlier, so it's a long-standing part of the mod list.[1]

The only thing the pack's in-game guide documents for it is its GUI framework, which supports themes. A theme sets the colours of GUI elements like control backgrounds, enabled and disabled text, button borders and gradients, text fields, the text caret and GUI titles.[2]

Themes are loaded by a mod from a JSON file. Texture pack and mod pack authors can override that theme file. Every value is required and is written as an RGBA colour in a hexadecimal string, such as "868686FF".[2]

So this is not a mod you build a base around. If you're a player, there's nothing to craft or unlock here. It's mainly relevant if you're a pack or texture author who wants to change how GUIs look.[2]

Unverified The sources don't show any quests that involve this mod, and they don't place it on the ATM Star path. Which other mods rely on it, and what else it adds, is also unconfirmed.

How do you get started with Zero CORE 2?

2 parts

Same as in the All the Mods 10 8.1 guide

The part of Zero CORE 2 the sources actually show is its GUI framework, which supports themes. A theme sets the colours of GUI elements, such as control backgrounds, enabled and disabled text, button borders, the text field caret and GUI titles. A mod can load a theme from a JSON file, and texture or mod pack authors can override that file.[2]

Unverified The sources here do not show any recipes for Zero CORE 2 items or any quests that involve the mod, so this section has no crafting order or recipe blocks. Check the pack's quest book and in-game recipe viewer for anything beyond what is covered here. This site does hold All the Mods 10: To the Sky's own recipes, read from the pack itself: look the item up in the item browser.

Debug tool

The mod has a debug tool for blocks. Its tooltip tells you to right-click a block to show debug info, and says queries are performed on the server side by default. A further tooltip line mentions querying on the client side.[3]

JEI message

One feature of the mod shows a message saying that JEI needs to be installed to use it. If you see that message, JEI is what that feature is waiting for.[3]

How does Zero CORE 2 work?

4 parts

Same as in the All the Mods 10 8.1 guide

Zero CORE 2 is a library mod, so it adds no machines, multiblocks or power systems of its own that you operate directly. What the sources show is the shared GUI framework and a debug tool for inspecting blocks. Other mods can build on both.[2][3]

GUI themes

The GUI framework supports themes that set the colours of various GUI elements. A mod can load a theme from a JSON file, and texture or mod pack authors can override that theme file.[2]

Every theme value is required. Each one is an RGBA colour written as a hexadecimal string, for example 868686FF.[2]

What a theme controls

  • General colours: the background of a control, the text colour for enabled and disabled controls, the dark border or outline of a control, and the title colour of a GUI.[2]
  • Buttons: separate colours for the normal, disabled, active and highlighted states. Each state has a gradient with a light start colour and a dark end colour, plus a 3D border with light and dark sections.[2]
  • Text fields: a gradient background, a 3D border with light and dark sections, and the colour of the caret.[2]
Tip: For any button or text field gradient, you get a flat background if the light and dark colours are identical. In that case only the light colour is used to draw it.[2]

Debug tool

The mod includes a debug tool. You right-click a block with it to show debug info for that block. Queries are performed on the server side by default, and the tool also has a client-side query option.[3]

Unverified The sources do not show how to switch the debug tool to client-side queries, what info it displays, or its item id and recipe. No recipes in the pack produce this mod's items.

JEI integration

Some Zero CORE 2 features need JEI. If you see a message that JEI needs to be installed to use a feature, that is where it comes from.[3]

Unverified Details on machines, multiblocks, power, fluid and item handling, and automation are not covered by the available sources, so they are left out. The pack also has no config files for this mod.

How do you progress through Zero CORE 2?

Same as in the All the Mods 10 8.1 guide

This section is short on purpose. The only material available for this mod describes its GUI framework, not a progression path or tiers. There's nothing here to build a tier-by-tier breakdown from.[2]

What the guide does cover is GUI themes. A mod can load a theme from a JSON file, and texture or mod pack authors can override that file. Each theme value is an RGBA colour written as a hexadecimal string, and all values are required.[2]

Unverified Quests, crafting recipes and tiers for this mod in this pack could not be confirmed from the available sources, so no progression path is described here.

Sources

  1. All the Mods 10 8.1 mod list · pack file
  2. In-game guide: assets/zerocore/GUI Theme file.md (zerocore) · official docs
  3. zerocore tooltips and descriptions (English lang file) · official mod data
Where this guide comes from

Written from what All the Mods 10: To the Sky itself ships: its files and recipes, the in-game guidebooks and the mods' own pages. Every statement links to the source it came from, and the numbers are checked against the pack before publishing.

Guide last verified Oct 15, 2026.

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Version in each release

25 releases, first in 1.0
All the Mods 10: To the SkyVersionJarWhere it came from
2.1.0
Oct 15, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.7
Oct 5, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.6
Sep 21, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.5
Sep 21, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.4
Sep 11, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.3
Sep 9, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.2
Apr 1, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.1
Mar 27, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
2.0.0
Feb 24, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
1.9.1
Feb 5, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
1.9
Feb 4, 2026
1.21.1-2.4.21ZeroCore2-1.21.1-2.4.21.jarFrom the published release
1.8
Dec 20, 2025
1.21.1-2.4.20ZeroCore2-1.21.1-2.4.20.jarFrom the published release
1.7
Nov 28, 2025
1.21.1-2.4.20ZeroCore2-1.21.1-2.4.20.jarFrom the published release
1.6.1
Oct 23, 2025
1.21.1-2.4.20ZeroCore2-1.21.1-2.4.20.jarFrom the published release
1.6
Oct 17, 2025
1.21.1-2.4.20ZeroCore2-1.21.1-2.4.20.jarFrom the published release
1.5.1b
Oct 2, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.5
Sep 26, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.4
Sep 11, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.3.1
Sep 3, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.2.1
Aug 28, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.2
Aug 28, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.1.2
Aug 22, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.1.1
Aug 21, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.0.2
Aug 15, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release
1.0
Aug 14, 2025
1.21.1-2.4.18ZeroCore2-1.21.1-2.4.18.jarFrom the published release

"From pack files" means the list came from the pack's own files; "from the published release" means ForgeBase read the jars of the release itself.

Items and blocks

1 items from the 2.1.0 recipe dump.

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