Crossum
A math puzzle that stays calm while your brain speeds up.
Crossum turns arithmetic into a compact, satisfying logic game. Complete equations across and down, race the clock, and solve cleanly designed boards that reward focus.
Core idea
Cross-number puzzle play
Designed for
Quick, repeatable sessions
Mood
Elegant and playful
Across and down logic
Every placement has to satisfy the full puzzle, not just a single line.
Fast sessions
One-minute rounds keep the pressure on without turning the game into noise.
Hints when needed
Supportive nudges help you stay in flow instead of getting stuck in frustration.
Gameplay feel
Simple rules. Deep fun.
Crossum strips away clutter so the board can do the talking. You see the equation, test the pattern, and settle into the rhythm quickly.
Complete equations across and down
Math meets puzzle
Think. Cross. Solve.
Simple rules, deep fun
Ready to try Crossum?
If you want a number puzzle that feels polished instead of chaotic, start here.
Want the broader studio lineup too? Head back to Axiom Apps home.