Originally Posted by
MarHel78
I'd say you have a game, then there's the sequel to the game and then the trilogy, quadrupology... no, trilogy, series...
I don't know a term for the first two games of a series, maybe the whole expression [game2], the sequel to [game1] has to do.
although 3 games of a series don't form a trilogy just like that. Take the GTA series: several games, but no trilogy, as they all have their own city, main character, story...
I can only think of movie-trilogies right now: LoTR, Matrix, Alien... you only get the whole story after seeing all films...