Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Abominable (30 points)	Defeat the Yeti and complete the challenge quest.
Dragonslayer (40 points)	Defeat the Green Dragon and complete the challenge quest.
King Godd (10 points)	Defeat King Godd and complete the 'King Godd' quest.
Shadowbringer (15 points)	Defeat the Shadowbringer and complete the 'Shadowbringer' quest.