It depends how they are designed. Same as regular uranium reactors. Thorium isn’t a reactor fuel after all, it’s what you use to breed more fuel. The actual fuel is still uranium. Thorium turns into uranium-233 then that is the fuel. Normal reactors use uranium-235. Both isotopes can be made to be passively safe.

Literally nothing you just said is correct.

It was definitely worth the price of admission, but I didn’t enjoy it enough to finish. The time loop mechanic just got annoying for me after a while. Having to time lots of different things and if you mess up you have to wait 15 minutes to try again.