As of May 31, 2023, we have updated our Code of Conduct.


A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

For questions related to the act or process of flying through an atmosphere. Includes any means of propelling oneself through the atmosphere of a world, including biological or technological. Does not…
352 questions
For question about creatures whose appearance is similar to that of humans. The creatures in the question should be different from normal humans in at least one way but can still be seen as mainly hum…
334 questions
For questions about a way to pass on biological information from one generation to the next.
333 questions
For questions related to the sets of rules set in place by organizations to govern the behaviour of the people.
305 questions
For questions about machines (esp. programmable machines) capable of carrying out complex tasks.
298 questions
For questions in which reality is different than it is in real life. This may range from small, historical changes to absolute revisions of the laws of physics.
297 questions
For questions about the process of turning a barren space (such as a planet, moon, or asteroid) into a habitable one.
289 questions
For questions about artificially modifying the DNA of a life form.
288 questions
For use with questions that have to do with the process of buildings structures or habitats.
285 questions
For questions dealing with the past events of a given world.
282 questions
For questions on population sizes, maximums and minimums, how they are affected by different events, etc.
279 questions
For questions related to a disorder (illness, disease and sickness) that affects the function or structure of an organism.
278 questions
For questions regarding a device that can be programmed to carry out a set of certain set of tasks without external intervention.
277 questions
For questions regarding the generation or flow of electrical charge.
277 questions
For questions involving the fundamental electromagnetic force. This includes electricity, magnetism, light, and other phenomena.
275 questions
For questions involving the specifics of combat.
273 questions
For questions based in contemporary Earth, current technology and social norms.
269 questions
Ecology is the scientific analysis and study of interactions among organisms and their environment.
268 questions
For questions that involve outer protective coverings used for defense of either creatures or structures.
267 questions
For questions about the act or process of transporting something or someone from one location to another, including by technological or non-technological means. For questions about the specific machin…
267 questions
For questions about the mechanical processes that allow organisms to live, including respiration, consumption, excretion. Focus on shapes of body parts and connections between parts.
265 questions
For questions about the standard passage of time on objects/people/civilisations etc. Also consider the [time-keeping], [spacetime-dimensions], [alternate-history], [universe], [time-travel], or [time…
262 questions
For questions about bodies of salt water large enough to sustain their own internal currents and do not drain to any larger body of water. Covers both currents, navigation, and ecology.
260 questions
For questions asking about the conditions which are required for the development of life as we know it.
257 questions
for questions relating to radically changed Earth. This alternate Earth could be a post-apocalyptic Earth, or Earth with major changes in the current social/political/economical schemes.
256 questions
For questions about events occurring below the surface of a body of water.
252 questions
For questions regarding the aesthetic elements of construction and design. It can apply to any historical period or complexity level, from earthen mounds to grand cathedrals.
250 questions
For questions that have to do with the liquid form of H2O.
249 questions
For questions about the means and methods any species, organism or entity uses to propagate itself.
240 questions
For questions about strategies and structures for defending from a particular type of attack
237 questions
For questions focused on worlds where magic exists, but is rare, in a world otherwise abiding to natural laws.
226 questions
For questions about treatment methods as well as substances used to heal wounds and cure diseases.
224 questions
For questions regarding the application of the laws of physics to orbital mechanics, stellar evolution, and other astronomical processes and celestial bodies.
For questions about gods, the creation of gods, their characteristics, and the effects they have on worlds.
219 questions
For questions that deal with weapons of mass destruction (WMD).
217 questions
For questions about a region of space time where gravity is so strong that nothing, not even light, can escape it.
212 questions
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