Roll your sphere through each level, collecting operation cubes that multiply, add, and subtract from your running total. The order you pick them up changes everything. Get it wrong and the portal remains unreachable.

But the math is only half the challenge.

Some doors can't be opened at all. Others block the only path to the portal. Before you move, you need to figure out which doors are actually solvable — then plan the exact route to hit those numbers. Move too fast and you'll find yourself stuck with the wrong total and no way back.

Watch out for tiles that rewrite the rules mid-run. Orange tiles shift the values of every remaining cube in the level. Dark blue tiles flip your operators — your +10 becomes a −10 in an instant. Death spheres lurk throughout each level, punishing any careless move.

4 tutorial levels ease you in — 100+ levels across three difficulties, easy enough to learn in minutes, deep enough to keep you thinking for hours with no ad interruptions. Just optional ads for hints and extra lives.

If you've ever wanted a game that makes you plan like a chess player and move like an action game, this is it.