The only escape is down through the center

The game board is a set of concentric rings, each inner ring lower than its outer neighbor, with a set of sloping notches cut at various intervals. Your set of marbles starts in the notches of the outermost ring. When a ring is rotated, a marble will drop through any aligned notch. Drop through the center and you leave the board. Clear all your marbles from the board and you win.

• Play solo against different computer strategies.
  
• Multi-player against others in the Steam Community.
  
• Select from various game options for number of players, count of marbles, starting positions, scoring, exit constraints, ...
  
• Configure the board and marble appearance.
  
• Game play is based on a physics simulation of ramps and rolling balls.

This is a purposefully slow-paced, non-violent, turn-based game that gives you plenty to contemplate as you consider your next move.