Complete the following achievements to unlock Microsoft Gamerscore points.

Achievement	How to unlock	Points
Survive 10	You have survived for 10 minutes.	50
Survive 11	You have survived for 11 minutes.	50
Survive 12	You have survived for 12 minutes.	50
Survive 13	You have survived for 13 minutes.	50
Survive 14	You have survived for 14 minutes.	50
Survive 15	You have survived for 15 minutes.	50
Survive 16	You have survived for 16 minutes.	50
Survive 17	You have survived for 17 minutes.	50
Survive 18	You have survived for 18 minutes.	50
Survive 19	You have survived for 19 minutes.	50
Survive 1	You have survived for 1 minute.	50
Survive 20	You have survived for 20 minutes.	50
Survive 2	You have survived for 2 minutes.	50
Survive 3	You have survived for 3 minutes.	50
Survive 4	You have survived for 4 minutes.	50
Survive 5	You have survived for 5 minutes.	50
Survive 6	You have survived for 6 minutes.	50
Survive 7	You have survived for 7 minutes.	50
Survive 8	You have survived for 8 minutes.	50
Survive 9	You have survived for 9 minutes.	50