Keep Prime Numbers

Numbers tumble and stack, and somewhere in the chaos, the primes need saving. Keep Prime Numbers is a puzzle game built around one deceptively clean idea — remove the right blocks so that composite numbers fall away while every prime stays put. The tension comes from how quickly a confident move can turn into a mistake you didn't see coming.

Recognizing primes under pressure feels different than recalling them on paper. When blocks are shifting and decisions need to happen fast, the brain works harder than expected. That gap between knowing something and applying it is exactly where this game lives.

It suits anyone who enjoys math-flavored puzzles, but also players who just like the satisfaction of a well-placed click that sends the right numbers dropping off screen. Minimal in presentation, surprisingly demanding in practice.