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

Recruit (10 points): Complete the Tutorial.
Skilled (20 points): Use 25 skills or spells.
Let Loose the Bugs of War (40 points): Complete the single-player campaign.
Tactical Maneuvers (20 points): Earn five of every hit bonus type outside of the tutorials.
Wet Bug Smell (15 points): Defeat an opponent by knocking him into the water.
Big Game Hunter (10 points): Show the barbarians up in food hunt.
Third Time's the Charm (5 points): Win three multiplayer games.
Gold Digging Ants (20 points): Earn 20 gold medals.
Spider Tamer (10 points): Earn 30 points in a single Spider Hunter game.
Ice Maker (15 points): Freeze 50 water tiles.
Good Host (15 points): Host 10 multiplayer games.
Bouncer (20 points): Win a scenario by knocking all opponents out of playable area.