Official Gameplay Guide...

Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Absolute Zero	Freeze to death three times in "The Storm" Chapter.	10
Augmented Reality	Use the Navigator for two consecutive minutes.	10
Bookworm	Find all Audiofiles and Datapads.	100
Call of the Void	Die twenty times from a fall.	10
Cliffhanger	Perform fifteen Perfect Grabs in a row while climbing.	100
Crew Expendable	Find all the Project Aphelion crewmembers' bodies.	50
Distraction Master	Lure the Nemesis away with Decoy Anomalies ten times.	10
Echo Seeker	Find the hidden Echo in "The Onyx Forest" Chapter.	50
Expert Glaciologist	Find all Glyphs.	50
First Contact	Find an Echo.	10
High-wire Act	Perform three Perfect Balances.	50
Killed by the Nemesis	Killed by the Nemesis ten times.	10
Nice Try	Fail the Commander's door code three times in a row.	10
Novice Glaciologist	Interact with a strange ice sculpture.	10
Orpheus	Cross the river without dying in the "The Styx" Chapter.	50
PIONEER	All Aphelion achievements unlocked.	110
Reunion	Complete Chapter 9.	10
The Base	Complete Chapter 6.	10
The Escape Pod	Complete Chapter 3.	10
The Nexus	Complete Chapter 8.	10
The Onyx Forest	Complete Chapter 4.	10
The Outpost	Complete Chapter 5.	10
The Pulse	Complete Chapter 2.	10
The Right Frequency	Interact with an Anomaly.	10
The Source	Complete the Final Chapter.	100
The Storm	Complete Chapter 7.	10
The Styx	Complete Chapter 10.	10
The Wreck	Complete Chapter 1.	10
Webb	Find all secondary markers with the Pathfinder.	100
Whisperstep	Escape the Nemesis Arena without being detected.	50