video game, Far Cry 5, Steam Deck handheld, gameplay action, first-person shooter, dynamic lighting, detailed textures, forest environment, wildlife, mountainous terrain, clear sky, in-game character, tactical gear, assault rifle, combat stance, exploration, interactive objects, high-resolution graphics, portable gaming, realistic water reflections, ambient occlusion, anti-aliasing, smooth frame rate, immersive experience, 3/4 view, vibrant colors, HUD interface, ergonomic controls, SteamOS.