Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Cockatrice (5 points): Ride the cockatrice.
Omni Character (10 points): Play as every character.
Turtle Village (10 points): Choose any character and reach Turtle Village (Stage 3) without dying once.
Amazon Magic (10 points): Perform the Level 6 magic attack with the Amazon.
Dwarf Magic (10 points): Perform the Level 3 magic attack with the Dwarf.
Barbarian Magic (10 points): Perform the Level 4 magic attack with the Barbarian.
Potion (15 points): Collect three potions from a thief or party of thieves.
Survivor (20 points): Choose any character and reach "Across the Sea" (Stage 5) without dying once.
Co-op Win (15 points): Complete the game in local Co-op mode.
Online Co-op (10 points): Complete an online co-op game.
Win (35 points): Complete the game.
Perfect Win (50 points): Complete the game without continuing.