Mountain Run is a free online endless runner game where you sprint down a snow-covered mountain at increasing speeds, weaving around trees, boulders, and other obstacles that come at you fast. Your only job is to survive as long as possible while grabbing every coin you can along the way. Simple to pick up, brutally hard to master.

The game keeps things fresh with dynamic season changes that shift the environment from icy Winter tracks to warmer Summer terrain, each with its own visual style and obstacle patterns. Coin pickups let you unlock new outfits for your runner, giving you something to grind toward beyond just chasing a personal best. Power-ups like the Magnet automatically pull in nearby coins, which makes a real difference when you are moving at top speed and cannot afford to steer off-course. The 3D graphics and running audio make every close call feel satisfying, and the controls stay tight even when the slope gets chaotic.

Mountain Run is a perfect fit for fans of endless running games, highscore chasers, and anyone who enjoys fast-paced sports and platform games. If you like free skateboarding games, ice running games, or slope-based sports games you can play without downloading anything, this one belongs in your rotation. Search terms like free online mountain running game, endless ski slope runner, and play Mountain Run browser game all lead here, and for good reason.