Captain of Industry Wiki - User contributions [en]

Nuclear Reactor

2026-04-17T16:50:31Z

5h4d0w: /* Historical data */ added nuclear processing guide

{{Infobox machine
| Name = Nuclear Reactor
| Tier =
| Description =
| Recipe =
{{Machine Recipe
| Input1Name = Construction Parts IV
| Input1Qty = 400
}}
| Workers = 80
| Electricity = None
| MaintenanceII = 24
| Footprint = 32x16*
| BoostByUnity = no
| Research = Nuclear Reactor (research)
| Designation = Power Production
| Variants = [[Nuclear Reactor II]]</br>[[Fast Breeder Reactor]]
}}
The '''Nuclear Reactor''' is a machine which generates large amounts of {{infoicon|SteamHp|text=Steam (High)|link=Steam (High)|new=yes}} from {{infoicon|Water}} for use in generators by means of consuming {{infoicon|Uranium Rod|plural=s}}. The machine itself is self-sufficient with regards to power and requires no {{infoicon|Electricity}} from outside sources.

Power is generated by passing the output {{infoicon|SteamHp|text=Steam (High)|link=Steam (High)|new=yes}} though [[High-pressure Turbine]]s and [[Low-pressure Turbine]]s with their output shaft connected to [[Power Generator]]s, typically Tier 2 variants of each. A majority of the Water can subsequently be recovered for reuse using a [[Cooling Tower (Large)]].

== Heat Exchange ==
The reactor has two different systems: convert {{infoicon|Water}} into {{infoicon|SteamHp|text=Steam (High)|link=Steam (High)|new=yes}} and convert {{infoicon|Water}} into {{infoicon|Steam Depleted}}. The two grouped ports at the edge of the reactor are the main heat exchangers of the reactor. These ports are used to create the steam to run the turbines. The separate port on the main reactor building is used for emergency cooling in case the reactor overheats. This port will not provide steam under normal operations.

== Overheat ==
For operating Nuclear Reactors safely, it is important to supply {{infoicon|Water}} and consume {{infoicon|SteamHp|text=Steam (High)|link=Steam (High)|new=yes}} stably. If one of them is lacking, "Reactor Heat" will start increasing.

If the Reactor Heat reaches on the red marker in UI, the emergency cooling will start. However, when no water for the emergency cooling is stored or all is spent, the increasing reactor heat will not stop. Upon reaching maximum, the super heated reactor will go critical and release a very large amount of [[Radiation|radiation]], likely resulting in the deaths of many citizens.

Note that overheating does NOT alert you or stop the reactor until it reaches critical overheating.

== Historical data ==
<gallery>
File:COIofficialnuclearprocess.png|Update 1 infographic flowchart guide for nuclear processing posted by the developers.
</gallery>

{{recipe define
| Input1Name = Water
| Input1Qty = 192
| Input2Name = Uranium Rod
| Input2Qty = 1
| Time = 40
| Output1Name = Steam (High)
| Output1Qty = 192
| Output2Name = Spent Fuel
| Output2Qty = 1
}}{{recipe define
| Input1Name = Water
| Input1Qty = 192
| Input2Name = Uranium Rod
| Input2Qty = 1
| Time = 60
| Output1Name = Steam (High)
| Output1Qty = 192
| Output2Name = Spent Fuel
| Output2Qty = 1
}}{{recipe define
| Input1Name = Water
| Input1Qty = 192
| Input2Name = Uranium Rod
| Input2Qty = 1
| Time = 120
| Output1Name = Steam (High)
| Output1Qty = 192
| Output2Name = Spent Fuel
| Output2Qty = 1
}}

<gallery>
File:Nuclear Reactor (old).png|Nuclear Reactor before version 0.5.0.
</gallery>

{{recipe define
| Input1Name = Water
| Input1Qty = 192
| Input2Name = Uranium Rod
| Input2Qty = 1
| Time = 40
| Output1Name = Steam (High)
| Output1Qty = 192
| Output2Name = Spent Fuel
| Output2Qty = 1
}}{{recipe define
| Input1Name = Water
| Input1Qty = 192
| Input2Name = Uranium Rod
| Input2Qty = 1
| Time = 60
| Output1Name = Steam (High)
| Output1Qty = 192
| Output2Name = Spent Fuel
| Output2Qty = 1
}}{{recipe define
| Input1Name = Water
| Input1Qty = 192
| Input2Name = Uranium Rod
| Input2Qty = 1
| Time = 120
| Output1Name = Steam (High)
| Output1Qty = 192
| Output2Name = Spent Fuel
| Output2Qty = 1
}}{{Footer Infobox}}

File:COIofficialnuclearprocess.png

2026-04-17T16:46:21Z

5h4d0w: From Discord message reupload of a Captain Marek post I can't find. Downsized to 2 MB

== Summary ==
From Discord message reupload of a Captain Marek post I can't find. Downsized to 2 MB
== Licensing ==
{{Other free}}

How to contribute

2026-04-17T16:37:56Z

5h4d0w: Added link to official press kit page.

This page is about the contribution guidelines - Best practices to fill this Wiki with content that is easy to find and create, but is also not missing any important information.

==Data Source==
*All values in this wiki are with entered ''default modifiers'' (Difficulty: Captain). Please remember this when adding new data, possibly you need to calculate the difference between your selected difficulty and the default values.
*All values for Maintenance, Workers, Electricity, Building Cost etc. are sourced by [https://github.com/David-Melo/captain-of-data this] Git-Repository. The previously mentioned values are sourced by the JSON-Files in this repository, that are exported directly from the game.
*Recipes are created by the Repository and can be copy-pasted right into the source editor for correct display.
*You can browse all the uploaded files like images in [[Special:ListFiles]]. Missing images from new updates might be found in the official [https://www.captain-of-industry.com/events-and-press Press kit].

==Automation==
We have planned automated tasks, such as:
*Updating Recipes (inputs and output diagrams for all machines and products)
*Updating Infoboxes (Boxes on the right side of an article, containing an image and general information about the machine/vehicle etc.)
*Updating Navboxes (Boxes at the bottom of an article page containing links to categories and other articles)

Though, none of the above are actually addressed yet.

Currently all templates can be found in [[:Category:Templates]]. The most important ones being:
* [[Template:Footer Infobox]] global footer for all the game object articles. Must be used in every game object article. It's precisely [[Template:Footer Infobox/doc | documented]].
* [[Template:Infoicon]] act as a link + image reference to something. Standard for linking items in texts.
* [[Template:Recipe_define]] is used to manually define recipes e.g. on a building page.
* [[:Category:Infobox_templates]] are templates used to show the info boxes on the top right of the game object articles.

==Best Practices==
*Articles are called like their ingame counterparts. We start with a capital character for every word: SMOKE STACK (LARGE) -> [[Smoke Stack (Large)]]
*Uploaded files are called like their ingame counterparts - except for vehicles, which follow the rule: TruckT1, TruckT2, ExcavatorT1, ExcavatorT2 etc.
*All (or most) mentions of other items, machines or articles in an article are links, easily linking all the content together to create the typical wiki structure
*For references on how to write articles, take a look at [[Oil Rig]], [[Mixer]] and [[Loose Storage]]. These articles have a good base structure.
*Don't write recipes in articles manually as an object description. This information is displayed automatically via usage of a specific [[Template:Footer Infobox | template]]. See "Automation" for details.

==FAQ==
Q: How can I contribute useful information to this wiki?

A: Please refer to the [[:Category:Outdated articles|outdated]] articles and [[:Category:Article stubs|stubs]] to find information you can add. Outdated articles have not yet been updated and might contain information from earlier versions, or are about content that no longer exists. Stubs are articles with missing descriptions or information in general. Feel free to add <nowiki>{{stub}}</nowiki> to a page you see is lacking information.

Q: Help! I edited a page and now all the recipes are just cryptic text?

A: Click on "More" -> "Purge Cache" next to the search function to clear the cache.

Q: What are Templates, and why are they mentioned everywhere?

A: Templates are scripts helping us to unify and organize many things. If you don't know how to use them, you can reference existing articles to get an idea of the parameters or ask for help in the discord.