Calculate It

Choose a calculator with its own unique features, expand its casing, and install new buttons. Reverse numbers, replace digits, take square roots, or swap your result with the target. Sometimes, a single well-chosen purchase opens up a whole new way to tackle each round. Passive upgrades change the rules. Earn coins by reaching certain numbers, recharge buttons when you earn coins, or restore glass buttons after a round. Choose upgrades that suit your calculator and make them work together.

Bosses disable specific buttons, increase charge costs, and even hide your calculator's display. Save your useful tools and find new solutions when your usual combination stops working. Complete a run with a calculator that loses a button after every round. Race against the clock. Decipher operations hidden behind alchemical symbols. In Only Up, start at one and work your way up to targets around ten thousand.