On a distant planet filled with society's discarded refuse,
Once loved toy robots search through the piles of garbage
Attempting to find some way back to their homes
This is the story of one such robot, named TB-303...

Fraction Reaction is a game about fraction addition and mental factoring. The gameplay consists of stacking columns of junk to create a level which can be traversed by the player character from left to right. Many objects will fit across multiple columns, creating bridges and other interesting patterns. Heavier items will crush lighter items in the column beneath them. Once a walk-able path is made, the character moves across the level to progress to the next stage.