During this era, mods like Grimes' Frosty Winter Weather became the standard for transforming the game's environment into a realistic winter setting. Key Features (Versions 1.30–1.39)
: Replaces rain with actual snowfall and adds improved foggy or snowy skyboxes.
: Replaces default summer textures with high-resolution snow-covered roads, fields, and vegetation.
: A major update that brought skybox improvements and better color saturation to the "Frosty" mod series. Installation Tips ATS/ETS2 Frosty's winter Mod 1.39 Colorado and Canada 4K
: Optional add-ons often introduce "Extreme" physics, making roads significantly more slippery and requiring careful braking and manual gear management.