Neptunium-239
unreachable
⚠ UNREACHABLE
reactor.isotope.neptunium_239⚠ Unobtainable as a distinct item. A running reactor produces Neptunium-239, but it consolidates into Nuclear Waste when you withdraw it — you never receive it on its own.
Consumed (to make 1, to the floor)
- ⚠ UNREACHABLE: reactor.isotope.neptunium_239
Tools / infrastructure required
- (none beyond starter)