Nuclear Relativistics Reborn
by FnWD
Nuclear Relativistics Reborn reworks the reactor and multiblock systems of NuclearCraft, adding fission fuels and machines for NeoForge.
What it does
The mod is a rework of tomdodd4598's NuclearCraft, keeping most of its features in place while changing the reactor setup. Its multiblock system is reimplemented so that reactors can be assembled from the new machine varieties. Many parts of the original design remain almost unchanged, and the author lists some other changes in the text.
Fission fuels come in three types: the default fuel, Oxide and TRISO. The generation rate of these fuels is 16 times that of the original mod, and heat generation stays configurable. The project is published for NeoForge on Minecraft 1.21.1 only, under the MIT License, and the source code and issue tracker are public. Client and server both need the mod, so every player on a server that runs it must install it as well.
Key features
Three fission fuel types
Default, Oxide and TRISO fuels are available, each used in the reactor to produce power.
Faster fuel generation
Fission fuels generate at 16 times the rate of the original NuclearCraft, with heat generation left configurable.
Reworked multiblock system
Reactors are built from reimplemented multiblock structures, which replace the original assembly logic.
Complete machine varieties
A full set of machine types is included, extending the reactor setup beyond the original mod.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Nuclearism is also a NeoForge mod for 1.21.1 on client and server, but it is not open source and is released as All rights reserved. Mekanism Fission Recipe is open source under the GNU General Public License v3.0 only and covers Forge and NeoForge for 1.19.2 – 1.21.1, while Just Enough Mekanism Multiblocks is client-side only and open source under the MIT License for 1.16.5 – 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Nuclear Relativistics Reborn | NeoForge | 1.21.1 | Client and server | 2026-01-08 |
| Nuclearism | NeoForge | 1.21.1 | Client and server | 2026-08-31 |
| Mekanism Fission Recipe | Forge and NeoForge | 1.19.2 – 1.21.1 | Client and server | 2025-01-20 |
| Just Enough Mekanism Multiblocks | Forge and NeoForge | 1.16.5 – 1.21.1 | Client-side only | 2026-09-22 |
Questions
Does Nuclear Relativistics Reborn need to be installed on the server?
Which loader and version does the mod support?
Is the mod a fork of NuclearCraft?
In the catalog
Nuclear Relativistics Reborn is one of 6,151 Food mods on ModsFinder, and one of 2,596 Food mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
The features remain almost the same as the original NuclearCraft. However, there are some changes: - Fission fuels now vary in three different types (Default, Oxide, TRISO) - Fission fuels now have a 16x generation rate compared to the original mod (Configurable), and the heat generation remains the same.
Official listing
- Modrinth page
- modrinth.com/mod/nrreborn
- Owner
- FnWD
- Published
- 2025-08-25
- Updated on Modrinth
- 2026-01-08
- Facts verified
- 2026-10-15