Here is the full list of all 16 Dress-up Traveller achievements.
Get all the equipment
Defeat tree demon
Defeat 500 enemies
Defeat big spider
Reach level 25
Reach level 20
Has 50000 coins
Defeat 150 enemies
Has 20000 coins
Get honey
Reach level 15
Defeat 50 enemies
Reach level 10
Has 5000 coins
Reach level 1
Has 1000 coins