These achievements are associated with earning credits. There are 100 legacy points spread between 10 achievements in 2 subsection. These achievements take some time to unlock, as getting to light or dark V requires 10,000 corresponding points, but if you continuously choose light or dark side options and send companions on gathering missions you should be able to reach level five before the start of your chapter 2 class story.
10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points
These achievements are unlocked by attaining Dark I, Dark II, Dark III, Dark IV, and Dark V alignment. Dark alignment is attained by choosing dark side conversation options and actions during missions.
10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points
These achievements are unlocked by attaining Light I, Light II, Light III, Light IV, and Light V alignment. Light alignment is attained by choosing light side conversation options and actions during missions.