Complex sentence: At this point, two other computer games had been released based on the Clue franchise (in 1992 and 1998), but this is the first one that "leaves the board game'feel' behind and transforms into a murder mystery adventure game".
Split into simpler sentences: At this point, two other computer games had been released based on the Clue franchise (in 1992 and 1998). This is the first Cluedo game that "leaves the board game'feel' behind and transforms into a murder mystery adventure game".