CC - Complementary Core
CC - Complementary Core is a library mod for Forge and NeoForge, providing helpers that other mods build on for recipes, loot tables, datagen, tool tiers and weapons.
What it does
Developers get a set of utilities covering recipes, loot tables, datagen methods, blockstates and item models. A registry helper adds a new tool tier and a tool set with far less code, and a TieredWeaponBuilder registers a new weapon type that picks up the same material tier automatically.
The library also adds new biome tags covering biomes from Biomes O'Plenty, Regions Unexplored and Terralith, along with support for custom structures and biome modifiers. Three mods in the catalog already require it, including CS - Complementary Structures, CTW - Complementary Tools & Weapons and The Boreal, so anyone using them gets it as a normal dependency. The mod adds no gameplay content of its own.
Files are published for Forge and NeoForge across 21 release versions, 1.19 – 26.2, and the code is open source under the MIT License. Client and server both need it, since the content it provides has to match on both sides.
Key features
Recipe and loot helpers
Utilities for writing recipes and loot tables, so mods can define them with less boilerplate.
Datagen and model methods
Helper methods for datagen, blockstates and item models, reducing repeated setup code in mod projects.
Tool tier and tool set registry
A registry helper creates a new tool tier and a matching tool set, built with much less code than doing each part by hand.
Automatic weapon registration
TieredWeaponBuilder registers a new weapon type that matches the tier of the weapon it is built from.
Biome tags and structures
New biome tags cover biomes from several worldgen mods, and custom structures and biome modifiers can be added through the library.
Compatibility
Latest build for each game version and loader.
26.x4 of 4 versions with builds
1.21.x10 of 10 versions with builds
1.20.x2 of 2 versions with builds
1.19.x5 of 5 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 3 mods
Use cases
Who it’s for: The mod is aimed at mod developers and at players who install one of the mods that require it. Players who only want new gameplay content will not find it here.
How it compares
Time Core is a Forge and NeoForge library with its own version, 1.20.1, and it is not open source under the All rights reserved license. CoFH Core is also a Forge and NeoForge library, covering 1.16.5 – 1.20.1, and it is not open source either. Wertyfire Core is Forge-only, with a 1.7.10 version and an optional environment under the MIT License, so the two cover different loaders and versions.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| CC - Complementary Core | Forge and NeoForge | 1.19 – 26.2 | Client and server | 2026-10-03 |
| Time Core | Forge and NeoForge | 1.20.1 | Client and server | 2024-02-13 |
| CoFH Core | Forge and NeoForge | 1.16.5 – 1.20.1 | Client and server | 2024-05-26 |
| Wertyfire Core | Forge | 1.7.10 | Client or server, optional | 2025-09-12 |
Questions
Does CC - Complementary Core need to be installed on the server?
Which loaders does CC - Complementary Core support?
Which mods require CC - Complementary Core?
In the catalog
CC - Complementary Core is one of 3,514 Library mods on ModsFinder, and one of 1,576 Library mods for Forge. 13,894 mods support Minecraft 26.2.
More from ElAguilaMC623
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What the author says
This is a core mod for all my mods. The mod does not add any new gameplay content, its only a library mod that anyone can use and makes some things for developers much easier. This library-mod adds several new utilities for developers, such as helpers for recipes, loot tables in datagen and methods for blockstates…
Official listing
- Modrinth page
- modrinth.com/mod/cc-complementary-core
- Owner
- ElAguilaMC623
- Published
- 2026-03-01
- Updated on Modrinth
- 2026-10-03
- Facts verified
- 2026-10-15