GeezerVison is showing github.com — Cyclus
This organization encompasses the repositories
of and relating to the Cyclus fuel
cycle simulator code. Cyclus is an agent-based nuclear
fuel cycle simulator. Cyclus is designed to enable a broad
spectrum of fuel cycle simulation, while providing a low
barrier to entry for new users and agent developers.
The three most-used repositories
are:
The structure of the organization is:
Each repository will have their own README,
CONTRIBUTING, and LICENSE, but some information that is
relevant to all repositories:
Follow up each of the procedures outlined in the Cyclus
Enhancement Proposals (CEPs)
All PRs should address an open issue. If an issue for your
PR does not exist, please make an issue first
When creating an issue or PR, it can be a:
Bug: Something is broken in the code and it is not working
as one would expect
Feature: You are requesting or adding in a new capability
that does not exist in the code currently
Task: Something that is not a bug or a feature; may be
more administrative in nature, such as updating
documentation.
The three repositories listed above have a discussions tab,
which is the ideal place to ask questions about installation,
use, suggest ideas, etc.
More information about Cyclus and the organization can be
found on the Cyclus website .
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The Cyclus Nuclear Fuel Cycle Simulator
C++
97
82
The CYClus Additional Module REpository
C++
17
48
Landing page repository
Python
8
33
Contributed Cyclus-compatible modules, more advanced than those available in Cycamore.
C++
1
8
Materials and codespaces for Cyclus workshops
Shell
1
34
Repositories
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Showing 10 of 33 repositories
cyclus/cymetric's past year of commit activity
Python
6
24
30
12
Updated Nov 12, 2026
cyclus
Public
The Cyclus Nuclear Fuel Cycle Simulator
cyclus/cyclus's past year of commit activity
cycamore
Public
The CYClus Additional Module REpository
cyclus/cycamore's past year of commit activity
cyclus/cyclus.github.com's past year of commit activity
Python
8
33
83
10
Updated Aug 18, 2026
cyclus/Workshop-Codespace's past year of commit activity
Shell
1
BSD-3-Clause
34
5
1
Updated Aug 9, 2026
.github
Public
Community health repo
cyclus/.github's past year of commit activity
0
BSD-3-Clause
3
0
0
Updated Aug 29, 2025
recycle
Public
Contributed Cyclus-compatible modules, more advanced than those available in Cycamore.
cyclus/recycle's past year of commit activity
C++
1
8
7
2
Updated Jul 17, 2025
cyclus/cyclus_gui's past year of commit activity
Jupyter Notebook
0
BSD-3-Clause
2
3
0
Updated Jun 8, 2025
cyclus/fictitious-case-studies's past year of commit activity
0
1
6
1
Updated Nov 25, 2023
data
Public
Repository for the storage of all Cyclus related data dependencies
cyclus/data's past year of commit activity
0
BSD-3-Clause
0
0
0
Updated Jul 22, 2021
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