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Activity for PStag‭

Type On... Excerpt Status Date
Question 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 hav...
(more)
over 6 years ago
Question How can paleolithic humans colonise the stars without direct help from aliens and still be primitive?
In my story I have paleolithic era humans who were contacted by aliens long enough ago for them to have used space travel to spread across many planets. I want them to be able to fly and somewhat maintain spaceships but not produce them. They are, however, still primitive and still live in caves wit...
(more)
over 6 years ago