Oddlay is a minimalist puzzle about overlap. Drag four odd-shaped pieces onto a five-by-five grid — every square a piece covers flips between light and dark, and the goal is to turn the whole board grey using all four. No rotating, no flipping; the challenge is reading how the shapes stack on top of each other. Handcrafted levels slowly fold in locked tiles and pieces that pin squares in place, so the ideas keep deepening without ever getting noisy.