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.
Game completed without using the easy level of difficulty.
100 units encouraged.
Page on Facebook or Twitter visited.
Sigurd defeated.
Defense spell used 10 times.
Acceleration spell used 10 times.
Rain of Fire spell learned.
The best equipment of all four types on.
All warrior abilities learned.
1000 damage inflicted to the enemies with Fire Arrow.
Three treasure chests collected.
All four equipment items on.
Arakin defeated.
Fromm defeated.
Two warrior abilities learned.
Equipment item on.
Treasure chest collected.
Warrior ability learned.
You defeated the army without losing a single warrior.
Peasants have joined you.