A night icehouse aisle. Steer a copper sled toward frost crates and blast the number that makes ten. Easy is bonds to 10. Medium and Hard use addition within 20: make ten first, then add the leftover. Three lives, a streak bonus, and a live score.
Read the Frost Sign
The plaque over the aisle tells you the job: make 10 with a number, or finish 10 + ☐ after the first blast.
Pick a Lane
Steer left or right before the crates reach the sled. The highlighted stack is the lane you chose.
Blast the Partner
The lamp fires at contact. The ten-partner shatters and the aisle opens. A miss slams the sled and costs a life.
Clear Ten Gates
Ten finished problems win. Three misses end the run. Change Easy, Medium, or Hard any time; the icehouse restarts.
A Night Icehouse
Black ice under copper runners. Salt-block walls. Two crate stacks ahead, each wearing a number. The aisle keeps coming at you.
Steer, Then Blast
Tap Left or Right, the aisle, or the arrow keys. A brine lamp fires from the sled. The correct stack shatters. The wrong stack costs a life.
Make Ten, Then the Rest
Easy is 7 + ☐ = 10. Medium and Hard show 8 + 6: first pick the 2 that makes ten, then pick the leftover 4 so 10 + 4 = 14.
Score, Streak, and Best
A gate starts at 100 and climbs by 50 with each streak. Ten cleared problems win the run. Best score is saved per difficulty.
The making-ten strategy for addition within 20. Kids find the partner that brings a number to 10, then add what is left.
Use the Left and Right paddles, tap the left or right half of the aisle, or press the arrow keys (or A and D).
A correct blast is 100 points, plus 50 for each extra hit in a row. A miss resets the streak and costs a life. Best score is saved for each difficulty.
On Medium and Hard, after you make ten, a second pair of crates asks for the rest of the sum. 8 + 6 becomes 10 + 4.
Yes. The speaker button sits in the HUD next to Score and remembers your choice.