Despite being a life simulator, The Sims franchise has a lot of lore and strange events that have occurred throughout its history. Some of these events are mysteries that are likely to never be solved thanks to the direction of The Sims 4 and shouldn't necessarily be explained in The Sims 5. Part of the charm and appeal of these mysteries is piecing them together and, while it can be frustrating not to know what happened, unsolved lore has always been one of the best parts of The Sims.