In Running Wool, players are tasked with navigating a yarn as it unravels and rolls across various terrains. The yarn is controlled by the player's movement of the mouse, which affects its direction and speed.
The game's core mechanic is the use of momentum to guide the yarn through obstacles and challenges. As the yarn rolls, it must avoid being snagged by obstacles, which slows it down or turns it back. The objective is to get the yarn as far as possible without getting caught.
The game can be played entirely in the browser without the need for download or registration, allowing players to jump right in and start exploring the world of Running Wool.