Junction is a puzzle game similar to Pipe Dream , where players aim to slide square track pieces into position to guide a ball to the exit. The game features 50 levels that can be attempted in any order, with a required point total needed to beat the game.
The gameplay involves sliding and rotating track pieces to create a path for the ball to follow, while avoiding obstacles and collecting points along the way. As players progress through the levels, they must accumulate enough points to unlock the next stage or achieve a high score.