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Patch 09/20/26

Nuclear Design Bureau · Community Announcements · September 21, 2026

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Changelog:

Added simulation speed buttons: 1, 1/2, 1/4 and 1/10 for those with super gpu's..
Fixed Space placement after adjusting shape knobs.
Fixed large designs failing to save or copy.
Fixed proton menu and drop down problems hopefully
Fixed incorrect sizes in selection tooltips and the archive. Existing archive entries update automatically.
Stopped scrolling from changing knobs unless they’re selected.
Added a warning before replacing a design through the dossier.
Fixed graph tooltip overlap and graph dragging/resizing at different UI scales.
Fixed graphs covering the controls in smaller windows.
Reset and Clear now keep your camera position and zoom. Press F to fit the board.
Fixed rotated rectangle previews and drawing alignment after changing UI scale.
Fixed Steam Cloud syncing for settings, achievements and larger saves.
Fixed a tutorial retry getting stuck after Reset.
Capped the 3D viewer at 60 FPS and paused rendering while hidden.
Disabled the Steam overlay by default on Windows to prevent crashes temporarily.


Good news on the LID front, its working finally. I'm hoping to get it out in the next patch tomorrow (HOPEFULLY)
I might do an experimental branch considering it will be a big physics change, the neutronics is changing bigtime.
Also I'm probably going to remove DT ice once LID works, and replace it with liquid deuterium, DT ice is not a practical fuel for this game.
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