What could make a planet more radioactive at night?

In the story of my video game, I want a group of colonists to land at dawn on an alien planet and have to terraform or build protective structures before sundown (several earth days).

I want the death of the colony if they fail the lethal dose to be within less than an hour, so I would prefer to have a bad-science-instant radiation death instead of death from cold or creatures coming out at night.

is a duplicate

This question has been asked before and has already been answered. It should be marked as a duplicate.

Please enter the URL of the proposed duplicate in the details field below.

not constructive

This question cannot be answered in a way that is helpful to anyone. It's not possible to learn something from possible answers, except for the solution for the specific problem of the asker.

Communities

What could make a planet more radioactive at night?

0 comment threads

0 answers