it is amazing kotor 1 won soo many awards and for the time it came out was amzaing graphics and i think it got rated #2 best star wars game of all time.
you can fully customize lightsabers, guns, armour, hundreds of different robe and armour types, amazing storyline with so many different options to take, multiple side characters, your decisions affect how dark/lightsided your character is, you can specialise as a gunner or jedi but your main character is a jedi you can still gun a lot. side characters include droids, mercenaries, jedi, wookie, and you can play as them too.
epic story line and if you dont use cheats some of the battles are quite challanging.
plus it is really cheap now since its an old game.
if you buy it you will be hooked until you have completed it as a Sith, a jedi, and as a gunner.
Kotor 3 looks amazing. i will have one character as a bounty hunter and one as sith inquisitor
this is a video of the combat system in kotor 3:
http://www.youtube.com/watch?v=u_ymDJJZSygthis is a cinematic trailor (really really good, must watch) :
http://www.youtube.com/watch?v=u_ymDJJZSyg