Modders Jéssica Natália, DimZet, Frosted Winter Team, erorcun has released total conversion mod with snow for Grand Theft Auto 3 — The Definitive Edition. This is first mod this big for the game and it changes a lot of textures.
The mod looks pretty and doesn't change GTA 3 original atmosphere.
You can download Snow Conversion for GTA 3 on our site.