It's Sudoku meets Die Hard.

Zero/Sum is a cinematic puzzle game that combines unique puzzle gameplay with a ridiculous action movie storyline- complete with live action cutscenes!

On the eve of discovering a mathematical cure for cancer, your professor is murdered by terrorists in search of the cure. In her dying moments, the professor is able to erase valuable parts of the equations. Can you re-solve the puzzle, and re-cure cancer, before the terrorists do?

I wrote, designed, and developed the game on my own, and released it last year on the iOS Appstore, where it was featured as both one of the “New Games We Love” and a “Game Of The Day” by Apple.

The game received a perfect score in its review on TouchArcade, the most popular mobile gaming website in the US, and earned a Silver Award from Pocket Gamer, the most viewed mobile gaming site in the UK! The website 148 Apps even called it one of the “The Best Games For The iPhone”.

Simply click on a space between to numbers to add a "plus" or "minus" sign! Your goal is always to make the equation equal zero!

Weird green screen video moments tell the 80s Action Movie -inspired story!

The game starts simple, but gets more difficult as the amount of equations increase, and new obstacles like timers, erasing operators, and number puzzles are introduced!