These achievements are associated with the alignment and morality system. There are a total of 100 legacy points spread between 10 achievements in 2 subsection. Most of these are relatively easy, but time consuming, to unlock.
10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points
These achievements are unlocked for reaching Dark I, Dark II, Dark III, Dark IV, and Dark V alignment.
10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points | 10 Legacy Points
These achievements are unlocked for reaching Light I, Light II, Light III, Light IV, and Light V alignment.