Number Munchers is an educational computer game released by MECC (Minnesota Educational Computing Corporation) in 1986. Number Munchers was designed to teach basic math skills such as addition, subtraction, multiplication, division and prime numbers.
In Number Munchers, players control the Muncher (Munchicus digitus) , a green creature with a taste for integers. When players start a new game they will be granted 4 lives. To advance to the next stage, players must devour all of the correct answers to the current question. If players consume an incorrect answer they will lose a life.
Existing only to hinder the player's progress are the Troggles, troll-like creatures that move over the game board changing the numbers as they pass. Safe zones may appear on the board at any time, providing players with a white square that Troggles can not enter. There is no end to Number Munchers; the game will continue to add smarter and faster enemies in increasing abundance until players eventually run out of lives.