About USNR: Ultimate Stellar Nucleosynthesis Reactor
From Factorio Mod PortalNew End Game helion reactor that recreates stellar conditions to synthesize most elements at ludicrous scales.
Bootleg of PreLeyZero's Star engine found in 248k. "Advance through 4 stages of tech. Start with simple machines and work your way through nuclear fission and fusion up to black and white holes, in order to tame the 248k Element..."
USNR Costs:
Only vanilla recipes. Tech and machines are very costly, be ready to make tons and tons of products!
Reactor Modules building order:
USNR Core + very low risk of reactor meltdown:
Mod recommendation:
Check Dependencies over Optional Mods.
Notes:
Attributions:
PreLeyZero original mod idea and graphics from mods. raiguard & Krastor graphics from mods. Malcolm Riley awesome icons.
Next updates:
0.0.? =
Fix crash/Balancing with mods. plasma turret. 25/10/2026 USNR plasma beacon.
Contact: Discord: emerson5442 Discord server: Exotic Industries
Highlights
From source dataFootprint
Rated a light load on a server.
License
Published under LGPL-3.0.
Last update
Its author last shipped an update 9d ago.
USNR: Ultimate Stellar Nucleosynthesis Reactor on Nxeon
From our catalogue- One-click install
- Supported on Nxeon Factorio servers. We download it from Factorio Mod Portal, place it, and restart the server.
- Server side
- Required on the server
- Server load
- light
- Smallest plan we suggest
- Factorio — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
- Latest build
- 0.0.8, released 2026-10-25
Recent builds
| Build | Released | Game versions | Loaders |
|---|---|---|---|
| 0.0.8 | 2026-10-25 | 2.1 | n/a |
| 0.0.7 | 2026-10-20 | 2.1 | n/a |
| 0.0.6 | 2026-10-19 | 2.1 | n/a |
| 0.0.5 | 2026-10-14 | 2.1 | n/a |
| 0.0.4 | 2026-10-12 | 2.1 | n/a |
| 0.0.3 | 2026-10-12 | 2.1 | n/a |
Dependencies
- Required: UTF: Ultimate Turbines ++ Fixed
- Required: Ultimate Fixed Mods Core part 5
- Optional: [reserved]
- Optional: Rate Calculator
- Optional: Helmod: Assistant for planning your factory
- Optional: Bottleneck Lite
- Optional: Even Distribution Lite
- Optional: Infinite Inserter Capacity Bonus Research
- Optional: Infinite Belt Stacking
- Optional: Better Fluid Throughput
- Optional: Auto Deconstruct
- Optional: Todo List
Declared by the newest build that lists any. Required ones are installed with it on one-click installs.
Run USNR: Ultimate Stellar Nucleosynthesis Reactor on a Factorio server
Pick a server or deploy a new one above; it is installed in one click.
What kind of mod it is
From the catalogTechnology & automation
Machines, power, logistics and automation.
Runs on your server
From source side supportFactorio Mod Portal lists USNR: Ultimate Stellar Nucleosynthesis Reactor as required on the server. Check its Factorio Mod Portal page to see whether players need it too.
Compatibility
- Game
- Factorio
- Runs on
- Serverrequired on the server
Verified at the source
- ✓Factorio Mod PortalOfficial listing, checked 2026-10-26Open ↗
- ✓AuthorVVVVVVEmersonFisioVVVVVV, as published on Factorio Mod Portal
- ✓LicenseLGPL-3.0Free
