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