Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Adventurer	Complete The Grasslands on Hard.	75
Crusty Exterior	Complete The Dark Hollow on Hard.	75
Cryptkeeper	Complete The Crypt of Horrors on Nightmare.	100
Cryptologist	Complete The Crypt of Horrors on Hard.	75
Explorer	Complete The Grasslands on Normal.	50
Exterminator	Complete Lair of the Ceranids on Nightmare.	100
Groundskeeper	Complete The Grasslands on Nightmare.	100
I Beat the Crypt	Complete The Crypt of Horrors on Normal.	50
I Hate Spiders	Complete Lair of the Ceranids on Normal.	50
Interfectorem Insectum	Complete Lair of the Ceranids on Hard.	75
Lightbringer	Complete The Dark Hollow on Nightmare.	100
Master of Sundaria	Obtain all Achievements.	100
Sleepy Hollow	Complete The Dark Hollow on Normal.	50