Occam
An infinite, one-input game about how much explanation is enough.
Close a shape around the filled dots. Every corner costs.
Each tap places a corner, and each corner past three costs a point. Two numbers update as you go: the corners you have used, and how well the shape fits the dots in front of you. Closing the shape on its first corner is the commit. Then ten times as many hidden dots fall, the shape is scored on them, and the corners that were enough are drawn faintly beside yours.
The run goes on, round after round, one shape a round, until a round scores below the floor. The rules never change, but the right number of corners does, so the skill is reading each set of dots, not remembering an answer. The result is the corners you used and the corners that were enough.
Every corner is a claim, and every claim has its own colour: a dot inside the shape takes the colour of the edge nearest it, so a corner that explains nothing shows. One sequence a day, the same for everyone.
WebGPU where the browser has it, and a Canvas2D renderer where it does not, so the game is whole on any phone. No camera, no account, and nothing leaves the machine.