Inca is an action game released in 1992 by Sierra On-Line. The game was released for Macintosh and PC (DOS).

Inca is a game that combines the features of a simulator and an adventure game. We find in it both elements of the shooter and solving puzzles. At the beginning of our adventure, we meet Huayna Capac, the last Inca chief, who is preparing the El Dorado warrior to defeat Lord Aguirre, the Spaniard chieftain. The action takes place in space - we destroy asteroids, fight spaceships, and go through labyrinths and solve puzzles. Our main mission as El Dorado is to obtain three diamonds: Time, Energy and Matter and defeat Lord Aguirre and defeat the power of the Spaniards.