Kill all the vikings in a ship, before it reaches the shore
Purchase an upgrade for one of your commanders
Complete the campaign on any difficulty
Kill 15000 vikings
Win an island in the snow
Complete the campaign on hard, recruit all commanders and keep them alive
Win an island at nighttime
Kill 1000 vikings
Win 10 islands in a row, without losing a single house
Fully upgrade one of your commanders
Win 3 islands on a single turn
4550
7565