Free Storm Skyboxes for Source Engine

7 skies

Heavy cloud, dark horizons, and the odd break of light. Pick these when the map needs weight and tension rather than a pretty backdrop.

2 skies

Clear working light for grounded scenes, readable horizons, and easy daytime coverage.

Overcast Afternoon / 13

4 skies

Late-day skies with warmer edges, longer shadows, and more cinematic atmosphere.

1 sky

Moonlit and low-light skies for quieter silhouettes, darker scenes, and dramatic contrast.