Across Roof and Sky turns the rooftops of Nantambu into a route with no railings and very little forgiveness. Tiles, ridges, ledges and gaps replace ordinary streets, forcing characters to judge each movement by both distance and height. The city remains visible below, but the useful terrain is above it, where a missed jump or forced step can matter as much as an attack.

In Strength of Thousands: Shadows of the Ancients, the map supports a fast pursuit across the academy cityscape. For a GM, the broken roofline creates natural stages for a chase: short sprints across broad surfaces, bottlenecks along ridges and leaps over dangerous gaps. Flying or climbing enemies can exploit the vertical space differently from grounded characters, making the encounter feel genuinely three-dimensional even on a top-down battlemap.