Last Nuclear Darkness cover
Last Nuclear Darkness screenshot
Genre: Simulator, Adventure, Indie

Last Nuclear Darkness

Patch notes: V 1.2.20.167

The following improvements and fixes were implemented:


    - Added option to overwrite saved progress.
    - Added self-lighting to the tablet, so the screen is visible even when there's no light.
    - Made some improvements to enhance player movement within the elevator.
    - Increased the movement speed of the elevators (when they are empty).

    - Fixed the bug of misaligned texts.
    - Fixed the bug with missing control rods controller.
    - Fixed the bug with the destroyed steam generator's visual effects.
    - Fixed the bug of "can exceed Primary Circuit Coolant Tank capacity with RCV valve".
    - Fixed the bug of music volume slider not reaching zero.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.20.166

The following improvements and fixes were implemented:


  • Fixed the visual bug in the reactive core effect.
  • Fixed the bug that sometimes prevented generating a maintenance report.
  • Fixed the visual bug when using the elevator.
  • Fixed the bug of incorrect initial values for Boron.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.20.165

The following improvements and fixes were implemented:


  • Added ladders.
  • Added a backup of the game configuration to avoid loss after an update whenever possible.
  • Modified the way the game manages changes in the graphical settings. Now a restart will be required if the changes cannot be applied. If the change is made while the game is running, the player will be notified that the changes will not take effect until the next restart.
  • Modified the icon representing the "Delete" action of the tablet save/load progress app.
  • Improvements and fixes were made to the webserver (thanks to GHXX).

  • Fixed the bug of the overloaded resistance banks alarm when the demand drops sharply.
  • Fixed the bug when storing a safety suit, where it disappeared from the container but could still be used.
  • Fixed the bug in the main menu, which sometimes had no music.
    v Fixed the bug with the ion column operating sound, which could be heard even if the column was not filtering anything.
  • Fixed the bug with text overlap in the tablet maintenance tasks app.

    [TESTING AREA]

  • Added visual effects.
  • New external vessel and simulated water.
  • New underground access to the maintenance areas and control rod machinery.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.20.163

The following improvements and fixes were implemented:


  • Added the possibility to close the inventory with the [ESC] key.
  • Added filters to the maintenance report.
  • Enabled the possibility to change the demand profile during the game.
  • Improvements were made to the interior lighting and the nighttime exterior lighting.
  • Increased the intensity and range of the player's flashlight.

  • Fixed the bug in the Boron dosing pump, which did not work correctly after loading a saved progress.
  • Fixed the bug of calculation that adjusts the pressure when passing through a valve (primarily noticeable in the admit valves).
  • Fixed the visual bug in the reflection of the glass of the generating turbines.
  • Fixed the bug in the tablet market app, where the navigation buttons sometimes remained visible.

    [TESTING AREA]

  • Redesigned the interior area of the core.
  • Added a new area for the control rod engines.
  • Improved the control system for the control rods.
  • Added the capability to load or unload the control rods.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.20.162

The following improvements and fixes were implemented:


  • An option was added to be able to start a new game skipping the initial instructions, and energize all the panels.

  • Fixed the bug in the calculation of the repair cost for steam and electric turbines.
  • Fixed the bug when initializing the game, where the numeric displays stopped working.
  • Fixed the AO bug when sending it to analyze the chemical treatment room.
  • Fixed the dry pump bug when emptying or filling the external core pool.

    [TESTING AREA]

  • Redesign of fuel loading bays.
  • New panel to control the hatches and move the fuel blocks.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.20.160

The following improvements and fixes were implemented:


  • Added a master switch in the control room for the resistance banks.

  • Testing area updated.

  • Fixed the bug with the synchronoscope decalibration after a blackout (when more than one generator turbine is installed).

  • Corrections were made to some units of measurement:

    1 - On the tablet, under "Service Compliance", the "Generated Energy", "Peak Generated" and "Total Demand".

    2 - On the tablet, under "Service Compliance", when on the "Efficiency" graph, the "POWER (MW)" value on the graph.

    3 - The gauge that is labelled "Supplying Externally" over the internal supply console in the control room.

    4 - The two screens that show "Accumulated Energy" and "Energy in External Network" bar graphs.

    5 - The "Generated" figure on the screen in the middle of the consoles


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.19.159

The following improvements and fixes were implemented:


  • Adjusted the scales of the analog meters to improve their accuracy.
  • Added an option to be able to select the energy demand profile when starting a new game.
  • Added a graph to the Service Compliance tablet app with the projection of the estimated demand per hour.
  • Added loop indicator to steam generator analyses.
  • Added a deterioration visual effect to the steam turbine textures.
  • Added variables related to the steam turbine and the electric turbine to the webserver. More info at https://nuclearesgame.blogspot.com/2023/11/webserver.html

  • Fixed the bug causing visual elements to protrude from the walls of the fuel block depot.
  • Fixed the bug affecting the functioning of electric turbine local panel meters.
  • Fixed the bug that made the weather always trend towards the cold.
  • Fixed the bug preventing meters from activating and updating correctly.
  • Fixed the bug preventing the upgrade of the electric turbine.
  • Fixed the bug with the electric turbine lights not turning on when loading a saved progress.
  • Fixed the bug in some actions and sounds not pausing correctly when pressing the P or ESC key.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.19.158

The following improvements and fixes were implemented:


  • Fixed the bug in the payment of event "KEEP COOLING PUMPS BELOW 50% DURING n HOURS".
  • Fixed the bug that prevented the electric turbine from being repaired even if it was not active.
  • Fixed the bug with the synchroscope that prevented the generator from being synchronized correctly.
  • Fixed the bug in the speed of the control rods in a SCRAM.
  • Fixed the bug when loading a saved progress with the steam turbine running, which always played the startup sound.
  • Fixed some translation errors.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.19.157

The following improvements and fixes were implemented:


  • Added a new option to the tablet's AO app: "Send Command".
  • Added a set of new AO commands: "Follow me", "Stop following me", "Scan your surroundings", "Scan the area..." and "Analyze the device..."
  • Added a confirmation required to exit the game from the options menu.
  • Modified the requirement to repair the Evaporators: the inlet and outlet valves must be closed, the reactor no longer needs to be offline.

  • Fixed the bug of some meters with a scale at 0 (zero).
  • Fixed the bug in some objectives, which were awarding an incorrect value of Prestige Points.
  • Fixed the bug in the video surveillance panel, where the multicamera mode switch activated the monitoring.
  • Fixed the bug in the reflection of the reactor reactivity panel.
  • Fixed the bug in the unit of measurement of the energy generated on the reactor status panel.
  • Fixed the bug of fuses falling off the shelf when loading a saved progress (it is not retroactive, if they have already fallen, they will still be on the ground).
  • Fixed the bug in the Pressurizer, which did not correctly recover the status of the heaters when loading a saved progress.
  • Fixed the bug with control rod movement not affected by accelerated time.
  • Fixed the bug in the control rods, which appear directly in the destination position when loading a saved progress with the rods moving.
  • Fixed the bug on numeric keypads, which did not block their interaction when there was a menu on the screen.
  • Fixed the bug on numeric keypads, where the display did not recover the last value entered when loading a saved progress.
  • Fixed the bug in the location of the box that controls the door at the entrance to the turbine room.
  • Fixed the bug when entering the core, since at a certain angle it allowed you to see the rain from outside inside the building.
  • Fixed the bug of overlapping doors in some fuse boxes.
  • Fixed the bug of absorbable energy by the resistance banks when there is a combination of turbines with open and closed breaker.
  • Fixed some translation errors.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!

Patch notes: V 1.2.19.156

The following improvements and fixes were implemented:


  • Increased player running speed by 10%.
  • Added "Animated Gauges" option to the game options menu. If active, all meters improve the smoothness of needle movement.
  • Added to the video surveillance monitor, the possibility of viewing four cameras at the same time.
  • Modified the control of video surveillance cameras: it is now possible to enter the ID of the camera to view.
  • Modified the demand matrix / load profile.
    More info at https://nuclearesgame.blogspot.com/2024/06/load-profiles-energy-demand-timings.html

  • [Chemical adjustments] Iodine generation per reactor power was reduced by 25%.
  • [Chemical adjustments] Iodine generation in the presence of boron was reduced by 10%.
  • [Chemical adjustments] The degradation of iodine in xenon was reduced by between 2% and 25% (depending on temperature).

  • Fixed the bug in the fuel control station display, where it sometimes did not correctly show the reason why the fuel block could not be ejected.
  • Fixed the bug in managing the start of activity when requesting at 11pm to start at midnight.
  • Fixed the bug in the lighting of the circulation pump oil meters.
  • Fixed the bug in the specifications of the electric turbine, where it showed an invalid value as RPM.
  • Fixed the bug that prevented manually analyzing the status of the new steam turbines.
  • Fixed the bug in the automatic opening controls of the control room, which are not maintained when loading a saved progress. [2]
  • Fixed the bug with the lack of head movement effect when running.


This update is compatible with all previous savegames. If you're having trouble loading a saved progress, please let me know!

We are waiting for you in the game's Discord!