Plate-class has a 53 × 22 × 4 km overall envelope, including a large central bow room called bridge. Its garden combines connected ridges, eroded slopes, drainage valleys and irregular lake shores. The fourth level is a hangar and service-bay deck, connected to the other levels by elevators and perimeter rail. Water volumes extend from bed to surface; interiors clear the beds. Selected interior bands are sparse samples, not every floor of the ship. Forward edges hold quarters; aft edges hold hangars, connected by perimeter rail. Halls include faceted, branching and terraced volumes; a carved garden canyon is an open-sky map space. Room markers are enlarged at ship scale. Choose a space and use Focus space to inspect its shape. The compass follows the deck plane: B bow, A aft, P port, S starboard. The Systems-class entry retains its imported upper face and working sector. Lakebeds and mountains constrain room roofs; pale stone frames support the great halls. Low stone skylights and elevator terminals grow from the terrain beside rail stations. Sealed rail can cross lakes. Aft hull sides hold hangars; forward sides hold galleries. Only rooms meeting an actual outer face receive windows. Third person is a room cutaway; [E] and [R] preview travel on the map. Export includes terrain, room polygons, light shafts, and transport. Player height: 1.95 m.