About Mothership
From Steam WorkshopT3 - Meticulously crafted vertical mothership, with gravity elevators, heavy combat shuttle, and an interesting playstyle. Final upgrade of the Mothership (Core). Ship Lore: Please see the T1…
T3 - Meticulously crafted vertical mothership, with gravity elevators, heavy combat shuttle, and an interesting playstyle. Final upgrade of the Mothership (Core).
Ship Lore:
Please see the T1 Mothership for lore
Stats:
Price: 32,800mk Role: Tier III Transport Size: 47 x 79m Recommended Crew: 6 - 14 Cargo Capacity: 24 crates

Performance
(No upgrades, fresh spawned crew) Max Speed: 21.5km/h Max Surfacing Speed: 18.8km/h Max Diving Speed: 21.9km/h Reactor Max Output: 10MW
Weaponry
1 Coilgun - Top Left 1 Chaingun - Bottom Left 1 Double Coilgun - Top Right 1 Switchable Double Coilgun/Railgun - Bottom right
Unique Features:
- New Playstyle - Vertical Sub.
- Designed for ease of use.
- Optimised for Performance. Only 11 shadow-casting lights. Very low number of electrical components.
- Magic Elevators to fly up the ship really quickly. Literally. See video.
- LINK - See T2 Mothership for inherited features
- Power Save Controls on command deck
- New Shuttle: Light Corvette

Features and Upgrades:
- Fully Vanilla.
- Bot friendly - Nearly perfect waypoint optimisation and design.
- LINK - See T2 Mothership for inherited features
- Added Aux Engine,
- Stronger ballast pumps, more bilge pumps
- Research Station
- Extra Batteries, more emergency power
- Oxygen Backup Power
- Expanded Armory
Playstyle:
This ship is really enjoyable with people, but it has been designed with absolute care so that it can be enjoyed even in solo play, despite the size and complexity. It is a straight upgrade of the Mothership (Core), which is the not-fully-built version of this. The Mothership is now fully built and can face threats of any level, while still leaving some challenge to its crew.
Overall, this ship should be very capable on vanilla, and somewhat difficult with mods such as Barotraumatic.
Model series: Mothership (Bare) -> Mothership (Core) -> Mothership. Find them all on the workshop

Important Notes:
This model, like its T1 and T2 counterpart, is still prone to overvolting. Try to not go from 100% engine power to 0% suddenly.
The Magic Elevators will deactivate themselves if they contain water, or if someone is loitering at their very top. This is to avoid bots getting stuck in them indefinitely.
Known Issues:
Item Finder - Pings are too small Because of how Barotrauma works, the red pings on the item finder will be very small. Please use a fine eye and try to zoom in.
Status monitor - Rooms too small Because of how large the ship is, the status monitor linked to the sonar is not very useful. If you want to accurately see where your breaches are, close the sonar, and use the status monitor on its own. It's the monitor just left to the navigation terminal, it has grid power and fuel numbers on it.
Bot AI and the magic elevator There should be no more bugs as such, as this ship was designed, developed and tested over three intense months. However, bot AI will always do everything possible to mess things up, so you might occasionally see some bots going up and down ladders, because they decided that's a good spot to idle on.
Feel free to leave a comment
Please do leave a comment if you find a bug. Hundreds and hundreds of small bugs were found while developing this, and ironed along the way. It feels surreal using the ship now and not finding any more. This ship bent Barotrauma so out of shape, for how the game is supposed to work, that it's incredible it works at all.
===== SHUTTLE - LIGHT CORVETTE =========

Shuttle Stats:
Price: 4500mk Role: Attack, Recon Size: 8 x 3m
Performance
(No upgrades, fresh spawned crew) Max Speed: 32.2km/h Max Surfacing Speed: 19.0 km/h Max Diving Speed: 20.7km/h
Shuttle Weaponry:
Coilgun Pulse Laser
Shuttle Features:
Long lasting batteries Reinforced Glass Ballast/Airlock Oxygen Tank Shelf Ammo Storage
=== USER MANUAL ===
Using the elevator
In the vertical elevator shafts to the side of the ship, stand ON a platform, away from the ladder, and hold S.
Host Dedicated Storage: How to regenerate ID cards
You will find these commands also ingame, on a hidden terminal next to the storage, which resides under the navigation terminal. But they can't be copied there.
Prerequisites: CORRECTLY installed Lua for Barotruama. See their workshop page for the installation procedure.
While wearing an ID card, run this command in the console:
SINGLE PLAYER: [spoiler] cl_lua Character.Controlled.Inventory.GetItemInLimbSlot(InvSlotType.Card).AddTag('id_server_host') [/spoiler]
MULTI PLAYER: Replace 'Name' with your character name, example lua yourcharachtername='John Smith' [spoiler] lua yourcharactername='Name' for c in Client.ClientList do if c.Character.Name == yourcharactername then local item = c.Character.Inventory.GetItemInLimbSlot(InvSlotType.Card) item.AddTag('id_server_host') Networking.CreateEntityEvent(item, Item.ChangePropertyEventData(item.SerializableProperties[Identifier('Tags')], item)) break end end [/spoiler]
How to disable the magic elevators
Highlights
From source dataFootprint
Rated a light load on a server.
Last update
Its author last shipped an update 11 mo ago.
Mothership 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
- 2025-11-20, released 2025-11-20
Game versions by loader
| Loader | Game versions | Newest |
|---|---|---|
| Workshop |
From 1 recorded build of Mothership.
Run Mothership on a Barotrauma server
Deploy a server above, then upload the file in Files.
What kind of mod it is
From the catalogVehicles & 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 ↗
- ✓AuthorTec, as published on Steam Workshop
- ✓LicenseNot published by the sourceFree

