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RTG – Guide

Isotope Generator (RTG) with 800 W for survival and Isotope Generator Creative without a limit, both with cable protection. Setup, operation, IC10, console and settings.

Last changed: Oct 9, 2026

v1.0.0 RTG – Isotope Generator

Power without fuel. The Isotope Generator (RTG) supplies its rated power permanently, the Isotope Generator Creative supplies whatever the network demands. Both respect the cable limit: they never offer more than the weakest cable in the network carries, so no cable burns out. Both have their own 3D models (core with cooling fins, warning stripes and radiation sign, plus a control cabinet), a display with three pages, LEDs, a governor and full IC10 control. Model labels, displays, buttons and device names appear in German or English, depending on the game language.

Overview

DeviceOutputSource
Isotope Generator (RTG)up to 800 W permanently, adjustable from 100 to 5000 WElectronics Printer, tier 2
Isotope Generator Creativedemand + 25 % + 5 kW reserve, no upper limitspawn menu only

Neither needs fuel, and neither produces exhaust or waste heat. They never offer more than 95 % of the weakest cable in the network.

Requirements

  • Stationeers 0.2.6428, BepInEx 5.4.23.5, StationeersLaunchPad 1.0, see Installation
  • Mod in the active mod pack
  • In multiplayer: the server and all players

Building and recipes

KitMachineCost
Kit (Isotope Generator)Electronics Printer, tier 220 steel, 10 gold, 10 silicon, 10 invar, 5 electrum (120 s, 2000 J)
Kit (Isotope Generator Creative)–no recipe, spawn menu only

The creative kit has no recipe on purpose.

Setup

  • Floor-standing unit 1 × 0.5 m, 1 m high (2 × 1 × 2 small cells). It fits on a frame.
  • The core with cooling fins sits on the left, the control cabinet with display and buttons on the right.
  • Ports at floor level: power outlet at the back of the core (red ring), data port at the front below the cabinet (green ring).
  • The unit only rotates around the vertical axis.
  • A newly built unit switches itself on once and starts supplying right away. After that the main switch decides.

The creative RTG has the same shape, ports and controls. It is violet with gold accents and carries a CREATIVE plate.

Cable protection

Every tick each RTG checks the weakest cable or fuse in its network and offers at most 95 % of it (setting KabelReserveProzent). From that it subtracts what the other generators in the same network offer in that tick: solar panels, wind turbines, transformers, battery outputs or generators from other mods.

Weakest part in the networkcarriesRTG offers at most
cable5 kW4.75 kW
heavy cable100 kW95 kW
super heavy cable500 kW475 kW
Extreme Cable10 MW (default)9.5 MW
network made only of Power Cable+unlimitedunlimited
fuseits trip limit95 % of it

For the survival RTG with 800 W any cable will do. The protection matters for the creative RTG and wherever many generators share a thin network.

  • Several RTGs in one network share the remainder in turn. Even together they stay below the limit.
  • Exception: if the other generators alone already offer more than the full cable limit, the RTG can no longer raise the cable flow. The typical case is the output of a charged battery in the same network. Then the RTG supplies normally instead of waiting until the battery is empty.

Operation

ControlEffect
Main switch (rotary switch)ON / OFF
MODEAUTO (full power on demand) or MANUAL
- and +change the power limit, switches to MANUAL
Arrow buttonschange the display page
  • Survival: - and + move in 10 % steps of the rated power. When you switch to MANUAL, the limit starts at the rated power.
  • Creative: - and + move in steps of 1, 2, 5, 10, 20, 50, 100 kW and so on up to 10 MW. When you switch to MANUAL, the limit starts at the largest step below what the cable currently allows, at least 1 kW.
  • In AUTO the creative RTG offers the demand plus 25 % and 5 kW. The reserve makes sure that consumers you switch on get power right away.

Display

Three pages, switched with the arrow buttons:

  1. Overview: output, limit with reason (core, governor or cable), demand, cable limit, mode and state.
  2. Core: for the survival RTG the isotope (Pu-238), rated power and operating hours. For the creative RTG the weakest cable in the network with its limit and what other generators offer.
  3. Statistics: generated kWh, operating hours, peak output.

States on the display: OFF (main switch), NO CABLE at the power outlet, CABLE FULLY USED (other generators), LIMITED by cable, LIMITED by governor, SUPPLYING, READY.

Looking at the unit shows output, limit, mode, demand, the weakest part in the network and the state.

LEDs

LEDMeaning
RUNswitched on
SUPPLYpower is flowing
LIMITthe network gets less than it wants because cable or governor limit it
FAULTno cable at the power outlet, or the cable is fully used by other generators
AUTO / MANgovernor setting
DATAdata port connected

While running, the glowing slots between the cooling fins light up.

IC10

DevicePrefabHash
Isotope Generator (RTG)StructureRtgIsotop-354603149
Isotope Generator CreativeStructureRtgIsotopKreativ-222389786
LogicTypeMeaning
Onmain switch
Modegovernor: 0 AUTO, 1 MANUAL
Settingpower limit in W. Writing switches to MANUAL. In AUTO it reads the rated power (survival) or what is possible now (creative, at most 10 MW)
Maximumpossible now: rated power or cable limit
PowerGenerationsupplied power in W
Ratiosurvival: share of the rated power. Creative: share of what is possible now
Error1 = no cable, or the cable is fully used by other generators

On, Mode and Setting are writable. Writing a power to Setting means MANUAL – Mode 0 switches back to AUTO. If the creative RTG has no limit at all (network made only of Power Cable+, KreativHoechstW 0), Maximum reads 1,000,000,000.

Address (get/put)Meaning
0generated energy in kWh
1operating hours
2cable limit in W (weakest cable or fuse), -1 = no network or no limit
3network demand in W
4display page 0–2 (W)

Writable addresses are marked (W). clr resets the statistics (kWh, hours, peak).

Example: show the output, report a fault

The generator is named "Isotop", a small LED display "RTG". The display shows the supplied power in kW, green while running, red on a fault.

# RTG: show output in kW, red on fault
define RTG -354603149     # Isotope Generator (RTG)
define ANZEIGE -815193061 # LED display (small)
define KW 1000            # W per kW
define ROT 4              # Color.Red
define GRUEN 2            # Color.Green
alias leistung r0
alias stoerung r1
alias farbe r2
start:
yield
lbn leistung RTG HASH("Isotop") PowerGeneration 0
bnan leistung start
lbn stoerung RTG HASH("Isotop") Error 0
div leistung leistung KW
select farbe stoerung ROT GRUEN
sbn ANZEIGE HASH("RTG") Setting leistung
sbn ANZEIGE HASH("RTG") Color farbe
j start

Console commands

Open the console with F3. rtg status works everywhere, rtg reset only on the host or server, or in single player.

CommandEffect
rtg statusall RTGs with output, limit, mode, demand, weakest cable, state, kWh and hours
rtg resetreset the statistics (kWh, hours, peak) of all RTGs
rtg reset nahreset only the statistics of the nearest RTG

Configuration

File: BepInEx\config\dominik1199.rtg.cfg, or through the mod settings in LaunchPad. The server's values apply.

KeyDefaultMeaning
SurvivalLeistungW800rated power of the survival RTG in W, 100 to 5000. The game's RTG has 800 W.
KreativHoechstW0maximum power of the creative RTG in W, 0 = unlimited. The cable limit always applies.
KabelReserveProzent95the RTGs offer at most this percentage of the weakest cable or fuse, 50 to 100

Multiplayer

New devices: the server and all players need the mod. The server calculates, the players display. See Multiplayer.

Known limitations

  • The RTG only limits its own offer. If other generators alone already offer more than the cable carries, it supplies normally. If the network then draws more than the cable carries, the cable burns – with or without the RTG.
  • In MANUAL the governor of the creative RTG goes up to 10 MW. In AUTO only the cable and KreativHoechstW limit it.
  • The survival RTG can only be throttled in 10 % steps of its rated power.
  • There is no recipe for the creative RTG.

Troubleshooting

SymptomCauseFix
Display: NO CABLE at the power outlet, LED FAULTno cable at the power outletconnect a cable at the back of the core (red ring)
Display: CABLE FULLY USED (other generators)other generators already use the whole cable limitlay a heavier cable or spread the generators over several networks
Creative RTG only supplies 4.75 kWnormal cable in the networkrun the whole network in heavier cable
LED LIMIT, display: LIMITED by governorgovernor is set to MANUALpress MODE (AUTO) or set Mode = 0
LED LIMIT, display: LIMITED by cablethe network wants more than the cable allowsheavier cable, see Cable protection
Display: OFF (main switch)main switch offturn the rotary switch on or set On = 1
Governor jumps to MANUAL after IC10Setting was writtenintended; Mode = 0 switches back to AUTO
No recipe for the creative RTGintendedget the kit from the spawn menu
rtg reset answers "Nur auf dem Host/Server …" (host/server only)command run on a clientrun it on the host or server, or in single player
Found a mistake? Let us know. Support
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