strategy game, Civilization V, handheld gaming, Steam Deck, isometric view, detailed terrain, hexagonal tiles, animated leaders, ancient era, futuristic era, world map, city-states, military units, resource management, diplomacy, technology tree, wonders of the world, multiplayer mode, touch screen interface, ambient occlusion, dynamic lighting, soft shadows, high-resolution textures, strategic zoom, 3D models, turn-based gameplay, civilization expansion, cultural influence, trade routes, espionage, cloud save, Steam achievements, cross-platform play, battery life consideration, ergonomic controls.