Operandi: Number Puzzle Game

The target is 72, exact, no going over. You have six moves, four
plus and two divide. Can you see the path?

Operandi is a math puzzle game of logic and mental calculation: tap
a number, a sign and another number, and the result adds up to your
total. Every level is handcrafted, with an elegant solution waiting
to be found. A brain teaser that feels great every single time.

HOW TO PLAY
Tap a number, a sign and another number: the result adds to your
total and gets you closer to the target. Operators have limited
uses, moves are counted, and in exact target levels going over is
not allowed. Ten seconds to learn, weeks to truly master: perfect
brain training for math lovers and puzzle fans alike.

260 HANDCRAFTED LEVELS
No random grids: every logic puzzle is designed, tested and tuned
one by one. The difficulty ramps up gently, and every chapter brings
something new: gold tiles, multipliers, ice to melt, bombs to
defuse, eggs to hatch, keys that unlock treasures, a piggy bank to
fill up and break open, domino tiles with two faces to choose from,
leeches that bite on every move and a phoenix that burns to give you
one last chance.

THE FIFTH OPERATOR
Plus, minus, times, divide... and glue. Stick two numbers together
and you get a single one: 3 and 7 become 37. Only a few uses per
level, but every merge can turn the game around.

LEVELS THAT FIGHT BACK
The deeper you go, the more the board comes alive. The tide raises
and lowers every number to its own rhythm, a sneaky thief steals
your best tile when his countdown runs out, closing walls squeeze
your total and blackouts force you to keep the count in your head.
The rotor decides which sign you may use each turn, day and night
swap the rules between them, streaks reward whoever sticks with the
same operator, earthquakes shuffle the whole board and storms
electrify one tile at a time. Plan around them, or turn them into
your finest weapon.

THE DUEL AT THE TOP OF THE TOWER
In the last chapter someone is playing against you. The rival calls
his blows two moves ahead: he pins down your best tile, drains your
total, steals when you least expect it. You have the numbers, he has
the sword.

A JOURNEY THROUGH 14 WORLDS
From the jungle to the desert, from the frozen lands down into the
abyss, across floating islands, a clockwork forge and an alchemy
lab, from the eclipse to the polar night, all the way to the funfair
rides and the rival's tower: the map takes you further one level at
a time.

THE BOOK OF SEALS
Nineteen seals to mint, one for every feat: stars collected,
chapters cleared, wins within par, daily streaks, levels won with no
boosters. Each one pays in coins and raises your rank in the Order,
from Addend to Infinity.

THE DAILY CHALLENGE
A new daily puzzle every day, the same grid for everyone. Win it and
grow your streak: how many days in a row can you keep it alive?

THREE STARS, IF YOU EARN THEM
Every level has a par, just like golf. Solving it with the perfect
line is worth three stars. Perfectionists, you have been warned.

TRAIN YOUR BRAIN ANYWHERE
Play offline, no internet, no sign up, no account. Five minutes in a
queue or a whole evening on the couch, you set the pace. And when
you get stuck, hints and boosters have your back.

If you love number games, brain games and math riddles, Operandi
will feel like home. Download it free and hit your first target.