Jaytv25's Nether Reactor Core
by Jaytv25
Jaytv25's Nether Reactor Core restores a structure from older Minecraft versions in the Nether, with a reactor core that activates and then breaks down after a short delay.
What it does
The mod brings back the Nether Reactor Core, a structure that Minecraft once had, and reworks it with a more modern layout. The structure is about 14 blocks wide and high, built from patches of soul sand and lava, with magma blocks and rib cages rising out of the ground. A small Nether fortress sits nearby, along with several Blaze spawners and Wither Skeleton spawners, and one of the Wither Skeleton spawners rests on top of a ruined portal.
Once a player activates the core, it runs for 10 seconds, which is 200 ticks, and then dies out and turns into a different state. The mod is built for Fabric and requires Fabric API, and it is installed on both the client and the server. Its files target 1.20.1 only, with 0.1.0 for 1.20.1 as the latest release, published on 2023-09-21. The author notes an update is expected soon.
Key features
Rebuilt reactor structure
A Nether Reactor Core structure modeled on the older version, but laid out with newer Nether content.
Timed activation
The core stays active for 10 seconds before it dies out and changes into a new state.
Mixed Nether terrain
Soul sand patches, lava, magma and rib cages surround the reactor, with a small fortress beside it.
Spawner placement
Blaze and Wither Skeleton spawners are placed around the structure, one of them over a ruined portal.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
ReEnchant is a server-side only mod with All rights reserved and is not open source, published for 1.18.2 – 1.21.11, so it changes nothing on the client. Soul Necromancy is client and server, not open source, under All rights reserved, for 1.20.1, which matches this mod's version. Spawners+ is client and server and open source under the MIT License, for 1.19 – 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Jaytv25's Nether Reactor Core | Fabric | 1.20.1 | Client and server | 2023-09-21 |
| ReEnchant | Fabric | 1.18.2 – 1.21.11 | Server-side only | 2026-03-05 |
| Soul Necromancy | Fabric | 1.20.1 | Client and server | 2025-10-03 |
| Spawners+ | Fabric | 1.19 – 1.21.1 | Client and server | 2026-03-10 |
Questions
Does Nether Reactor Core need Fabric API?
Does the server need the mod?
Which Minecraft versions does the mod support?
In the catalog
Jaytv25's Nether Reactor Core is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
The Nether Reactor Core remake adds back and overhauls the Nether Reactor Core with a new structure that includes stuff from the more modern day nether. The structure created by the Nether Reactor Is 14 blocks wide and high and includes a patch of soul sand, some lava + magma with rib cages emerging from the ground…
Official listing
- Modrinth page
- modrinth.com/mod/jaytv25s-nether-reactor-core
- Owner
- Jaytv25
- Published
- 2023-09-21
- Updated on Modrinth
- 2023-09-21
- Facts verified
- 2026-10-15