Here is the full list of all 21 Braveland achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Game completed using only the hard level of difficulty.
100 units encouraged.
Defense spell used 10 times.
Acceleration spell used 10 times.
Game completed without using the easy level of difficulty.
Three treasure chests collected.
1000 damage inflicted to the enemies with Fire Arrow.
Sigurd defeated.
The best equipment of all four types on.
Rain of Fire spell learned.
All warrior abilities learned.
Arakin defeated.
All four equipment items on.
Treasure chest collected.
Page on Facebook or Twitter visited.
Fromm defeated.
Two warrior abilities learned.
Equipment item on.
Warrior ability learned.
You defeated the army without losing a single warrior.
Peasants have joined you.