Here is the full list of all 40 Viking Brothers 4 achievements.
For earning every achievement.
For restoring the glory of the worlds of Edda.
For finding the Hammer of Creation and Anvil of Worlds.
For dispelling darkness.
For completing 30 levels with three gold stars.
For unlocking five taverns in the main adventure.
For dispelling a storm cloud 30 times.
For completing a level without using a booster.
For assembling the Divine Bonds.
For gathering 1,000 pearls.
For solving the central gate puzzle.
For completing 10 levels with three gold stars.
For destroying Mittalmar's magic dome.
For meeting a patrolling enemy 30 times.
For gathering 1,000 units of wood.
For gathering 1,000 units of stone.
For earning three stars while playing Chipmaster.
For gathering 1,000 units of gold.
For finding the first fragment of the Divine Bonds.
For canceling 30 tasks.
For using a booster 100 times.
For acquiring information about the stolen artifact.
For gathering 1,000 units of food.
For finding the underwater stalker.
For restoring the magic well.
For acquiring the underwater breathing potion.
For getting rained on 100 times.
For canceling a task.
For gathering 100 pearls.
For encountering a patrolling enemy.
For gathering 100 units of stone.
For giving 300 tasks to the Vikings.
For gathering 100 units of wood.
For using a booster.
For persuading Loki to join the cause.
For gathering 100 units of gold.
For giving the Vikings five tasks at once.
For unlocking a tavern.
For gathering 100 units of food.
For completing a level with three gold stars.