Astral Cores
For survival servers and SMPs, Astral Cores adds 12 items that each grant one active and one passive ability, and it runs only on the server.
What it does
Every Core is paired with an active power, toggled by holding Shift and pressing F, and a passive power that needs no input. The activate command can flip the active power too. Server owners decide how players come to hold these items.
An admin sets up the Core system by running astralcores place altar, then placing the altar where Cores reappear after being lost. An altar placed in the wrong spot can be taken out with astralcores remove altar and set again. The mod ships across several seasons, and a later season may bring new Cores, powers and progression steps.
Players join without installing the mod, since it sits entirely on the server, and the code is open source under the GNU General Public License v3.0 or later. Fabric API must be present on the server, plus any other server-required mods. A player who wants the full look can add the official Astral Cores Resource Pack, which is optional; without it the same information shows in the action bar. Files cover Fabric 26.2 and 26.3, and the latest is s1-2.4+26.3-release, dated 2026-09-17.
Key features
Twelve custom items
The mod adds 12 custom items, each built around a set of abilities meant for play on servers.
Active and passive abilities
Every Core has one active ability, toggled with Shift + F, and one passive ability that works without input.
Altar-based respawns
Cores respawn at an altar that an admin places with a command, and a misplaced altar can be removed and set again.
Action bar fallback
Information normally shown by the resource pack appears in the action bar, so players without the pack still see status.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Astral Projection is a Fabric option with client and server environment, published for 26.2 under All rights reserved and not open source. Magic by zoyluo is a Fabric mod with client and server environment, open source under the MIT License, and built for 1.21.3. My golden tools mod is also a Fabric mod with client and server environment, open source under the MIT License, and built for 1.21.8. Astral Cores differs by running server side only and covering 26.2 and 26.3.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Astral Cores | Fabric | 26.2 – 26.3 | Server-side only | 2026-09-17 |
| Astral Projection | Fabric | 26.2 | Client and server | 2026-07-04 |
| Magic | Fabric | 1.21.3 | Client and server | 2026-07-18 |
| My golden tools mod | Fabric | 1.21.8 | Client and server | 2025-08-28 |
Questions
Does Astral Cores need to be installed on the client?
Is the Astral Cores Resource Pack required?
What does Astral Cores require on a server?
In the catalog
Astral Cores is one of 7,216 Magic mods on ModsFinder, and one of 3,630 Magic mods for Fabric. 8,071 mods support Minecraft 26.3.
Similar mods
What the author says
Astral Cores is a server side Fabric mod that adds 12 custom items with unique abilities, designed for SMPs. The mod adds 12 custom items, each with one active ability and one passive ability. The active ability can be toggled with Shift + F or by using the /activate command.
Official listing
- Modrinth page
- modrinth.com/mod/astral-cores
- Owner
- Experience Points Studios
- Published
- 2026-09-07
- Updated on Modrinth
- 2026-09-17
- Facts verified
- 2026-10-15