cstrike/ │ ├── my_skybox.wad ← Contains ft, bk, lf, rt, up, dn textures ├── maps/ │ └── my_map.bsp └── gfx/ └── env/ ← (Alternative: place TGA files here, but WAD is standard)
Every map in CS 1.6 has a sv_skyname value defined in its metadata. This name corresponds to a set of six .tga (Targa) image files located in the /cstrike/gfx/env/ folder. The engine stitches these images together—front, back, left, right, up, and down—to ensure there are no visible seams as a player looks around. Standard Naming Convention skybox cs 1.6