VOI

VOI is a minimalist shape puzzle built around a simple rule: when black shapes overlap, the overlapping areas invert to white. Your goal is to use that effect to reproduce a target shape.

Each puzzle gives you a set of draggable geometric pieces. Arrange and overlap them to change the visible pattern, working out how the pieces combine to form the target.

The game presents 66 puzzles, with levels selected by scrolling. Its monochrome presentation keeps attention on the shapes and the logic of their overlaps.

Several players enjoy VOI’s unusual black-and-white overlap rule, describing it as an interesting way to make shape puzzles that encourage thought without requiring language. Reviews also praise its clean minimalist presentation and use as a brief brain exercise. Others find the puzzles too easy, the experience too short, or the ending unclear.