Star Trek: 25th Anniversary and Star Trek: Judgment Rites are two beautiful point and click adventures from the early Nineties that recreate amazingly well the vibe, the tone, the themes fron the classic TV show. They achieve that in the most obvious ways, with returning characters, easter eggs and, most of all, the entire cast doing voiceover (Shatner, what a voice!), but - more importantly - by getting the structure and the narration right. Also, to a certain degree, they have an almost RPG approach, because the best way to "read" puzzles and situations consists in having the characters act as they would in the show, interacting between themselves, arguing, using technological gadgets. There's a lot of variety, often different possible approaches to the puzzles and a system that allows you to continue even if you don't complete missions in the absolute best possible way. Also, the episodic structure makes them much less brutal than other contemporary games in terms of consequences for failure or death, it actually pushes you to be daring. The second game fixes the few things that needed to be addressed, with a lighter approach to space combat (the only actual big issue in 25th Anniversary) and a couple of nice new features, and it pushes a bit more in terms of interconnected plot between the episodes. Of course these two games require the kind of patience you need when you play a "non Lucas" adventure game from thirty years ago (the point and click interface is a bit clunky, even though if you use the keyboard shortcuts it becomes a breeze) but they are much more welcoming than many others and they absolutely deserve to be played. Also, if you get in trouble, gamefaqs is always there for you.