Climb a tower of bosses, casting cards by solving arithmetic and shoring up your weakest operation.
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How to play
Each card in your hand carries a math problem; to cast it you must solve the operation correctly. Bosses on every floor attack each turn and probe whichever of addition, subtraction, multiplication or division you have been weakest at. Cast cards to deal damage and survive the climb.
Play a card, answer its problem correctly, and it resolves.
End your turn to draw again, but you take the boss's hit.
Each floor's foe targets your weakest operation, shown as a hint.
Reach as high a floor as you can before your HP runs out.
Controls
Desktop: click a card to select it, type the answer and press Cast; use the number field for input.
Phone & tablet: tap a card, type the answer with the on-screen number pad, and tap Cast.
Game modes
Daily seeded run or endless Practice, at Easy, Medium or Hard.
Tips & strategy
Practise your weakest operation deliberately, bosses lean on it, so improving there pays off most.
Spend strong cards on big boss turns and save cheap ones for chip damage.
Do not rush the answer; a miscalculated cast wastes the card and the turn.
What you'll learn
Sense Ladder fuses a card-battling roguelite with drilling the four arithmetic operations, so steady practice powers your run.
Skills: the four operations, mental arithmetic, fluency, strategic planning
Best for: roughly grades 2–6 (ages 7–12)
For parents & teachers: sustained arithmetic practice wrapped in a progression people want to keep playing.
About Sense Ladder
Sense Ladder is an original free browser game from PlayPendium that fuses a card-battling roguelite with drilling the four arithmetic operations. Play instantly, no sign-up required.
A free, original browser game on PlayPendium. No download, no install.
