Diffission is a touch-based fractions learning game developed by Filament Games for web browsers, tablets, and mobile devices. Players solve procedurally generated puzzles by slicing shapes into equal parts to create specific fractions through intuitive, gesture-driven play.
Diffission is a touch-based fractions learning game developed by Filament Games for web browsers, tablets, and mobile devices. Players solve procedurally generated puzzles by slicing shapes into equal parts to create specific fractions through intuitive, gesture-driven play. This interactive experience uses geometric manipulation to help players master fractional concepts through endless, procedurally generated challenges across multiple digital platforms.
Fraction Partitioning, Numerical Equivalence, Visual-Spatial Math, Geometric Reasoning


Break whole shapes into equal parts to match target fractions.
Engage with endlessly varied fraction challenges.


Swap, dissolve, and divide shapes using intuitive controls.
Collect diamonds to access increasingly complex challenges.

Fractions are a foundational math concept that often benefits from visual and tactile exploration. Diffission supports conceptual understanding by letting learners manipulate parts of a whole directly, reinforcing fraction reasoning through repeated, hands-on practice.
We admit it—math wasn’t exactly our strong suit in school. But fractions would have made a lot more sense if we’d had Diffission. This educational puzzler elegantly introduces the mechanics of slicing up blocks to equal target fractions, then gradually turns up the challenge. Before we knew it, we were learning about dividing whole numbers in a fun new way.

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