Matachin, is a 2D video game of Metroidvania-type platforms. Strange things are happening in Pasto. People no longer leave their houses or play with Eugenia Chalacán, our protagonist, who felt in sadness claws since her grandfather, Elías Chalacán, passed away.

An afternoon, Eugenia also known as Cuza, searches through her grandfather's belongings. There, she finds a letter, in which her grandfather tell her that inside the Carnival Museum, she will find the way to destroy sadness.

In the Museum, she will find the Golden Matachín, a monkey that will grant Eugenia the powers to enter the Spirit World y getting back to his home, defeat sadness, play with her friends and bring back happiness to her city.