Serum Run

A cozy 3D sled-dog adventure that teaches you a true, heart-warming piece of history in about ten minutes.

What it does

Serum Run lets you live the 1925 Great Race of Mercy — the winter a relay of brave mushers and 150 sled dogs carried life-saving medicine 674 miles across frozen Alaska to the sick children of Nome. You drive three legs of the real journey through a snowy, low-poly world lit by the northern lights, keeping the precious serum warm and your dogs happy. Between legs, gentle story cards tell you what actually happened — and introduce the real four-legged heroes, Togo and Balto.

Features

• A true story you play — three hand-crafted chapters that follow the actual relay, from the first sled out of Nenana to Balto's dawn dash into Nome.
• Charming 3D world — fluffy dog teams, glowing lanterns, falling snow, spruce forests, and shimmering aurora.
• Gentle, kind gameplay — steer the team, catch warmth to protect the serum, and toss your dogs a salmon treat. There is no losing — only the journey home.
• Learn as you go — short, friendly history cards reveal the real people, dogs, and choices behind each leg.
• Your run, remembered — finished journeys are saved with your time and honorific so you can come back and beat them.

When to use it

Reach for Serum Run when you want a warm, wholesome ten-minute break that leaves you knowing a wonderful true story — perfect for a cozy evening, a screen-time treat for a curious kid, or any moment you'd like a little wonder.