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

Viking Conqueror Normal (30 points): Reach the end of the game on normal difficulty.
Viking Conqueror Hard (60 points): Reach the end of the game on hard difficulty.
Niflberg Supplies Freed (20 points): Liberate the farm and the quarry in Niflberg.
Dragon Summoner (15 points): Find and charge the dragon gem Hugin and dragon amulet, and summon a dragon.
Skullbagger 1 (15 points): Collect the 6 skulls in Darkwater.
Savior of Niflberg Normal (25 points): Liberate Niflberg completely on the normal difficulty level.
Savior of Niflberg Hard (35 points): Liberate Niflberg completely on the hard difficulty level.
Galcliff Supplies Freed (20 points): Liberate the farm, still, lumber mill, and the quarry in Galcliff.
Dragon Master (15 points): Complete the second dragon gem, and summon a dragon.
Skullbagger 2 (15 points): Collect the 6 skulls in Holdenfort and the 6 skulls in Caldberg.
Demon's Nemesis (40 points): Kill Hel's Harbinger Drakan.
Redeemer Of Galcliff Normal (30 points): Liberate Galcliff completely on the normal difficulty level.
Redeemer of Galcliff Hard (40 points): Liberate Galcliff completely on the hard difficulty level.
Isaholm Supplies Freed (20 points): Liberate the farm, still, lumber mill, and the quarry in Isaholm.
Dragon Overlord (15 points): Recover the final dragon gem, and summon a dragon.
Skullbagger 3 (15 points): Collect all the 4 skulls in Thornvik.
Death King (25 points): Finish off 150 Legion with fatality moves.
Demon Eviscerator (20 points): Finish off 100 Legion with fatality moves.
They Never Saw Me Coming (20 points): Execute 100 sneaky kills.
Giant Killer (25 points): Find and slaughter a Legion Giant.
The Flames of Freya (20 points): Buy flamepots and incinerate 10 Legion soldiers with them.
Thor's Mortal Lightning Rod (5 points): Send a Legion back to the underworld in the most lightning-tastic way imaginable.
Odin's Doomsinger (5 points): Use the ultimate fire attack to kill a Legion.
Heimdall's Enforcer (5 points): Glacially wipe out a Legion using the ultimate ice attack.
Deadly Axe Juggler (15 points): Kill 5 Legion just using Throwing axes.
Euthanasia Euphoria (5 points): Use your defensive bash to knock your Legion foes to their doom!.
Friend Of The People (10 points): Power-up over 500 Vikings in your armies with runic magic.
Assassin of Assassins (15 points): Locate and kill a Legion Assassin.
Blinded To Fear (45 points): Kill 50 Legion without using a health potion.
Viking Slaughterer (12 points): Learn a total of 4 new moves.
Viking Butcher (10 points): Master the first new move at the Battle Arena.
Viking Slayer (14 points): Master a total of 8 new moves.
Viking Warrior (16 points): Master a total of 12 new moves.
Viking Blademaster (18 points): Learn all the moves in the game.
Demon Hacker (5 points): Finish off 25 Legion with fatality moves.
Secretive Rogue (20 points): Complete the quest to sneak into Darkwater.
The Perfect Killer (20 points): Kill a Legion Champion without being hit.
Killer of Champions (5 points): Kill 10 Champions.
Killer of Giants (5 points): Kill 5 Giants.
Hero Of Darkwater (10 points): Lead your army to victory at the battle for Darkwater.
Hero Of Holdenfort (10 points): Lead your army to victory at the battle for Holdenfort.
Hero Of Caldberg (10 points): Lead your army to victory at the battle for Caldberg.
Hero Of Thornvik (10 points): Lead your army to victory at the battle for Thornvik.
Hero Of Midgard (20 points): Lead your army to victory at the final battle for all Midgard.
No Need For Immortality (50 points): Lead your army to victory at Hel's Fortress without need for immortality.
Thirst For Blood (10 points): Kill 50 Legion soldiers.
Lust For Blood (20 points): Kill 100 Legion soldiers.
Champion of Champions (25 points): Find and defeat a Legion Champion.
Berzerker (35 points): Kill 200 Legion soldiers.
Slaughter Master (50 points): Kill 500 Legion soldiers.