Krackem [Krack'em] Arrives!
Transform Mathematics Classrooms Through Play
From immersive collaborative escape rooms to rapid skill-building puzzles like Sum 10, Krackem turns routine practice into meaningful learning.
Word and visual problems combine in games designed for teams of students, or individuals, to find their way through an adventure game, like the Mountain Adventure.
Sum 10
The ultimate number bonding puzzle - players from age 5 to adult can enjoy this simple and hugely effective game. Players must create a total of 10 from moving numbers up and down a simple grid, with increasing levels of difficulty.

Move the 8 down to become 7... and Sum 10 with the 3.
Pairs can't touch though - how to make 10 with the other pair?
Bonding numbers to 10 has never been so much fun...
Teacher and Tutor Tools
Krackem has built in progress monitoring tools for teachers and tutors wanting to improve outcomes from groups and individual students.
Better still, you can tailor Krackem games to your practice - amend questions, add questions, change questions. It's a powerful suite of tools, yet incredibly simple to use.
Huge Value
Also in keeping with Tarquin's ethos, the Krackem subscriber gets everything within a single price - including any new games and apps.
Take a tour around the Krackem site and Get a Free Game
Have a look for yourself here
If you like what you see, sign up for a completely free game.
Who Created Krackem?
Behind Krackem stands a powerhouse team combining decades of multidisciplinary expertise in mathematics education, game design, and technological innovation. Our team brings together Tarquin's over 55 years of global publishing excellence, decades of leadership at the Israeli Center for Excellence through Education, award-winning curriculum development, the minds behind the internationally acclaimed card game Swish, and extensive high-tech and game-development experience. Deep educational insight combines with immersive, playful design to transform how the world experiences mathematics and puzzles.


