Snow Line is a Christmas-themed puzzle flash game that tasks the player with helping Santa Claus gather presents scattered around an icy mountain. By drawing tracks of snow through the air, the player guides Santa and his sled throughout a series of levels, avoiding obstacles and collecting power-ups along the way.

After Santa Claus' reindeer come down with a bad case of hiccups, presents intended for a rapidly-approaching Christmas Day are scattered across Europe. Without his trusty steeds, Santa must travel through snowy mountaintops on a one-man sled and collect all the gifts before Christmas comes and goes.