Ok, so basically in Among Us there's 4-10 people on a space ship, and 1-3 of them are an Imposter. The Imposter has to go around sabotaging the ship and killing people without being found out. The rest of the people are Crewmates. The Crewmates have to do tasks and figure out who the Imposter is. If the Crewmates finish tasks before the Imposter kills them all then they win.
If a Crewmate comes across a dead body they should report it, and then everyone tries to figure out who the Imposter is.