{ "water_features": { "lake": { "display_name": "Lake", "description": "Large body of fresh water surrounded by land", "formation_type": "water_accumulation", "budget_impact": 1 }, "pond": { "display_name": "Pond", "description": "Small body of still fresh water", "formation_type": "water_accumulation", "budget_impact": 1 }, "waterfall": { "display_name": "Waterfall", "description": "Water cascading down from height with hydroelectric potential", "formation_type": "water_erosion", "budget_impact": 1 }, "marsh": { "display_name": "Marsh", "description": "Wetland area with standing water and specialized vegetation", "formation_type": "water_saturation", "budget_impact": 0 }, "central_hill_swamp": { "display_name": "Central Hill Swamp", "description": "Marshy wetland with elevated central hill providing strategic position", "formation_type": "water_saturation_with_elevation", "budget_impact": 1 }, "islands_swamp": { "display_name": "Islands Swamp", "description": "Swampland dotted with multiple small dry islands and complex waterways", "formation_type": "fragmented_water_saturation", "budget_impact": 1 }, "hilly_swampy": { "display_name": "Hilly Swampy", "description": "Rolling terrain with marshy valleys and elevated dry ridges", "formation_type": "terrain_drainage_pattern", "budget_impact": 0 }, "river_source": { "display_name": "River Source", "description": "Origin point of a major river with strategic importance", "formation_type": "groundwater_emergence", "budget_impact": 2 }, "delta": { "display_name": "River Delta", "description": "Fertile river mouth area with rich sediment deposits", "formation_type": "sediment_deposit", "budget_impact": 2 }, "oasis": { "display_name": "Oasis", "description": "Isolated fertile spot in desert with precious water source", "formation_type": "groundwater_emergence", "budget_impact": 3 } } }