To find areas resembling an abandoned dorm, you should:
* Explore every building: Don't just stick to the main paths. Venture into side rooms, hallways, and even seemingly inaccessible areas. Often, hidden passages or partially collapsed areas lead to forgotten parts of the school.
* Look for inconsistencies: Pay attention to areas that look different from the more regularly used sections of the school. Look for places with broken windows, overgrown plants, or decaying furniture.
* Listen for clues: The sounds in the game can sometimes hint at locations off the beaten path. Unusual noises or whispers might lead you towards a less-explored area.
Essentially, the "abandoned dorm" is a matter of exploration and discovery rather than a clearly marked location on a map. The experience of finding these areas is part of the game's atmosphere.