Run through an infinite space tunnel. Avoid gaps — or fall into the void!
Arrow keys / WASD · Space to jump
Run 3 is the iconic infinite tunnel runner set in deep space. You control a small alien sprinting through a cylindrical tunnel that stretches endlessly forward. The tunnel is built from hexagonal tiles — and some of those tiles are missing, leaving gaping holes into the void. Your job is simple: don't fall in. Move left and right to dodge gaps, jump over smaller holes, and when you reach the edge of the tunnel, keep going — the world rotates 90 degrees and you're suddenly running on the wall. The original Run 3 was a beloved Flash game from the early 2010s; this version brings the same tunnel-running magic to modern browsers with no plugins or downloads needed.