Among Us maps: vent locations, emergencies, and visual tasks

Looking for tips on how to play each Among us map? Once you've got intimate knowledge of each Among Us map, your chances of winning will rapidly increase. The very first thing a new Among Us player must learn is the name and location of every room on the map - if you're trying to figure out which one of your friends is leaving a trail of bodies in their wake, you need to know what it means when they claim to have been doing tasks in electrical while a body was found in medbay? Hint: that's suspicious. Hella sus, as they say. If you don't know why, then you need this guide.
It goes without saying that as an impostor, you need to know where all the emergencies take place, so you can direct your unwitting victims accordingly. Not only that, but knowing which vents lead where is instrumental in figuring out suspects' potential escape routes, as well as planning a robust alibi if you're an impostor.
Even for experienced Amongers (that's not what they're called) who already know these basics, it's also important to know which parts of the map the security cameras can see, and where the second stages of common tasks like wiring could end up. There are also important differences between each Among Us map, which will inform your playstyle and strategy - so here's everything you need to know about The Skeld, Polus, and Mira HQ.
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