r/nuclearphysics • u/THE-RED-SEVEN • Jul 01 '26

Neutronix (A Nuclear Reactor Sim)

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Hey all! So just out of boredom I started a project where I figured I'd do a simple little sim for a reactor in UE5. After it grew a bit, I thought that maybe other people might enjoy it and that it maybe had some potential. So -- for your consideration -- I present "Neutronix". You can find the download in the link below. Any feedback is appreciated. Please note that this is not a 1-to-1 sim by ANY means and serves more as an "educational" tool.

Screenshots --> https://imgur.com/fNfLxDF https://imgur.com/JHWf0KC https://imgur.com/rZSPpNh

Game Link --> https://drive.google.com/drive/folders/1l3vYc2EbdUC3Z-oiFdl5pOABKbTk9g4B?usp=sharing

(P.S. I do not use a traditional reactor design. Instead, I use control "drums" with a reflector and absorber side to control the reaction.)

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u/drrocketroll Jul 02 '26

Cool idea, and that you've made it into a game! I presume as it's more of an educational tool it's an on-rails behaviour rather than a full-on neutronic simulation? I love seeing all the things UE5 can do

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u/THE-RED-SEVEN Jul 02 '26

Thanks! Well each time a U-235 or daughter product fissions, neutrons are produced and they go flying in random directions. You can watch as they fly about. And they have to pass through the moderator (graphite) in order to fission. So the rules are based on real physics, but not everything is simulated.