Source-checkedVehicles & ships

USSF NR-1 'Nerwin'

by Eskander · for Barotrauma

USSF NR-1 A 1:1 scale replica submarine of the US Navy NR-1 vessel, the smallest nuclear submarine that has served in the USN. Part of the…

2.3KDownloads
5 yr agoLast updated
Steam WorkshopSource

About USSF NR-1 'Nerwin'

From Steam Workshop

USSF NR-1 A 1:1 scale replica submarine of the US Navy NR-1 vessel, the smallest nuclear submarine that has served in the USN. Part of the…

[h1]USSF NR-1[/h1] A 1:1 scale replica submarine of the US Navy NR-1 vessel, the smallest nuclear submarine that has served in the USN. Part of the USSF series by Eskander.

SUMMARY

Replicates: NR-1, 1969-2008 Variants: 2; Replica, Retrofit (mk2) Crew Size: 3-13, (At least 2 human crew is helpful) Difficulty: Moderate to High (custom maneuvering mechanics, limited weapons) Barotrauma Type: Deep Diver

Gameplay Description: A mid-size submarine of moderate complexity replicating the innovative, unique USN NR-1 with adaptions to be a viable vessel in-game. This vessel imitates some realistic mechanics of submarine operation at the time that are more complex than vanilla Barotrauma submarines but does not require significant human crew manning, similiar to the real vessel. Ideal vessel for small crews and suitable for roleplay.

General Characteristics: Size: 45m L x 9m H Power Source: 100kW from special purpose small PWR nuclear reactor Max Speed: 9km/h Depth Change System: Floodable Main Ballast Tank + Vertical Thrusters Propulsion System: Electric Motors, powered by batteries Weapons: None; (mk2 retrofit variant has 1 fore railgun, 1 dorsal coilgun, 1 ventral coilgun, 1 electrical discharge coil on a blindspot)

HISTORY

The NR-1 stands out as a truly unique vessel that was willed into existence against all odds by ADM Rickover as a special project. The design defied convention in many ways, using innovative technologies to be one of the most advanced and capable deep diving vessels in history that was used for no small number of significant research and covert operations. The history and stories of the NR-1 are an interesting read for anyone with interest in submarines. A short narrative following the design/construction of this vessel with a collection of stories during its service is at: http://www.nr-1-book.com/Contents.html for free. This heavily inspired some of the specifics of this in-game recreation.

CREW ROLES

Highly Recommended to have 2+ human players; A few core functions cannot be performed by AI. Essential roles listed below. For full details on roles, refer here.

Officer of the Deck (OOD)(Captain): Drives the vessel from the helm and commands the operations of the submarine. Recommend familiarity with specifics of this vessel's maneuvering systems.

Engineering Officer of the Watch (EOOW)(Engineer): Operates EOOW console and regulates power plant/power grid. Read power/reactor notes.

Junior Officer of the Deck (JOOD)(Any role): Free hand to assist others.

SYSTEM FUNCTIONS

This submarine has custom systems that differ from vanilla Barotrauma behavior. Maneuvering has custom systems for depth change and power grid/power plant functions differently. For full details on how to use each system/function, refer here.

DESIGN NOTES

Many thanks to those over at the discord sub design channel for answering questions, inspiration, and discussing complex systems.

No classified information was used -- only public knowledge/Open Source information was used for this; machinery layout in the mod, particularly in the engine room and power plant, is an estimation as details of those spaces and many of the specifics of this vessel are still classified.

Highlights

From source data

Footprint

Rated a light load on a server.

Last update

Its author last shipped an update 5 yr ago.

USSF NR-1 'Nerwin' on Nxeon

From our catalogue
One-click install
Not available. One-click install isn't available for this game's mods yet. Download it and upload it to your server in Files.
Server load
light
Smallest plan we suggest
Barotrauma — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
2021-07-25, released 2021-07-25

Game versions by loader

LoaderGame versionsNewest
Workshop

From 1 recorded build of USSF NR-1 'Nerwin'.

Run USSF NR-1 'Nerwin' on a Barotrauma server

Deploy a server above, then upload the file in Files.

What kind of mod it is

From the catalog
Listed on Steam Workshop as “Workshop”

Vehicles & ships

Cars, boats, aircraft, ships and other things to drive or fly.

Compatibility

Game
Barotrauma

Verified at the source

  • ✓Steam WorkshopOfficial listing, checked 2026-10-10Open ↗
  • ✓AuthorEskander, as published on Steam Workshop
  • ✓LicenseNot published by the sourceFree

USSF NR-1 'Nerwin', answered

Generated from the mod’s own source data.

Is it free?

Yes. USSF NR-1 'Nerwin' is free to download from Steam Workshop.

How do I add it to my Nxeon server?

One-click install isn't available for this game's mods yet. Download USSF NR-1 'Nerwin' from Steam Workshop and upload it to your Nxeon Barotrauma server in Files.

NxLabs

Run USSF NR-1 'Nerwin' on a Barotrauma server.

Deploy in about a minute from $4.99 a month, then upload USSF NR-1 'Nerwin' in Files.