strategy game, Civilization VI, handheld gaming, Steam Deck, touch screen interface, button controls, dynamic lighting, in-game HUD, detailed textures, high-resolution graphics, 3D models, ancient era, world map, hexagonal tiles, turn-based gameplay, multiplayer, city-building, resource management, historical leaders, diplomacy, military units, wonders of the world, cultural development, technology tree, strategic view, isometric perspective, ambient sound, immersive experience, portable gaming, Valve SteamOS.