Here is the full list of all 28 Heroes of the Monkey Tavern achievements.
Finish the game in easy mode
Burn 50 enemies
Inflict 100 damage in one hit
Reach the level 10
Shoot 100 arrows
Defeat the werewolf
Find Snaga
Unlock all achievements
Reach the level 5
Bash 10 enemies with a shield
Collect 50 items
Heal 50 times
Cast 100 spells
Find 10 secrets
Defeat 10 snakes
Bring back to life someone of your party
Walk 1000 tiles
Die once
Poison 20 enemies
Block 20 hits
Defeat 10 enemies
Defeat your first enemy
Cure poison 10 times
Defeat 100 enemies
Finish the game in normal mode
Finish the game in hard mode
Freeze 20 enemies
Finish the game with a monk in your party