Here is the full list of all 9 Tropia achievements.
Take the wizard around the world and collect the remaining party members.
Find all five keys in the elemental temples.
Recruit the paladin.
Recruit the brawler.
Recruit the ranger.
Find the five bells hidden in each town.
Defeat the five secret bosses.
Defeat King Thura and save the word!
Get to level 99 with all characters.