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Create the marble track of your dreams with dozens of parts across a variety of environments. Use pipes, curves, boosts, teleporters, triggers, forcefields and more. Solve nifty puzzles as you guide each marble to their goal in our handcrafted puzzles and countless generated ones.

Player counts over time, as we observed them.
Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology