stone archway 3d model

Giant fly-through stone arch, low poly retro arcade sci-fi style, designed as a navigational landmark for a space shooter level, wide opening for aircraft passage, dramatic silhouette visible from long distance, very few triangles, faceted geometric rock, muted purple-gray and dark blue palette, pale beige moonlit edges, flat shading, no textures, PS1/N64 aesthetic, nighttime alien desert biome, optimized for fast gameplay readability.