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