List of skyboxes - Official TF2 Wiki | Official Team Fortress Wiki
Valve Cut Content Wiki on X: "An old polluted-green skybox from the early days of Half-Life 2 was found under the filename sky_wasteland01 (a name used by a completely different, unpolluted sky
Skyboxes and filters - The RuneScape Wiki
span class="mw-page-title-main">Example Mod Custom Skybox</span>
Skybox (video games) - Wikipedia
tutorials:terragen:skybox [BundyWiki]
Linedef type 448 - SRB2 Wiki
Wiki: Upload: Half-Life skybox: night - TWHL: Half-Life and Source Mapping Tutorials and Resources