Draw or find a map of the location, then divide it into ‘rooms’ — these can be actual rooms, or just sensible dividing lines within a larger space.

The map doesn’t have to be pretty, detailed or to scale. You can just draw the rooms with boxes, and connect them with lines.

Keep these principles in mind when creating a map:

• Multiple paths give the players decision points while navigating the space. Create loops and links to other paths.
• Varied paths create distinct areas within the site. Stairs, ramps and cliffs break up the flow of a level and create more variety when navigating the space. Secrets paths reward players who are paying close attention.
• Multiple entrances, (even hidden ones) create opportunities to approach problems from a different angle.
• History and ruination have dramatic impacts on a space. Hint at changes left by previous inhabitants.