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