As I mentioned elsewhere, I believe the inclusion of "Rakata Prime" in the official TFA galaxy map is a sheepish acknowledgment that JJ Abrams borrowed a huge amount from the KotOR game.
I'll start with the one that was noticed long ago. Kylo Ren's look is rather similar to Darth Revan. This extends to the theme of just being a mask an robe worn over a perfectly normal human. One of the faces available for the male PC even looks a little like Adam Driver.
Rey's look is very like Bastilla Shan. Change the robe from brown to sand, replace the sabrestaff with a staff. Face an hairstyle are similar, similar "cut glass" accent.
Plot device: galaxy map to the planet where the mcguffin is, broken into parts which must be reassembled.
Plot device: superweapon powered by draining energy directly from a star.
Scene: Rey/Bastilla strapped to a torture table tortured with dark side power by Ren/Malek.
Loose: love interest for protagonist is a soldier.