Around 1994 there was a computer game I used to play when I was a child. I don't remember much but I know that it took place on a different planet and there were several moons and i believe it was a series. There were several levels and one of them included putting words into the correct category to form a bridge across a canyon. The goal of the game was to protect an amulet. And the last level was a gateway with a passcode that you had to guess in a certain number of tries.