Here is the full list of all 49 Idle Medieval Tavern RPG - there are Raise a Champion for Titans Battles achievements.
Complete 10 quests
Complete the tavern management training
Complete squad management training
Complete 100 quests
Complete 1000 quests
Complete 10000 quests
Complete 10 premium quests
Complete 100 premium quests
Complete 1000 premium quests
Complete 10000 premium quests
Hire 2 Mercenaries
Hire 5 Mercenaries
Hire 10 Mercenaries
Hire 20 Mercenaries
Exchange equipment 10 times
Exchange equipment 100 times
Exchange equipment 1000 times
Exchange equipment 10000 times
Sell equipment to the caravan 10 times
Sell equipment to the caravan 100 times
Sell equipment to the caravan 1000 times
Sell equipment to the caravan 10000 times
Feed 100 visitors
Feed 1000 visitors
Feed 10000 visitors
Feed 100000 visitors
Get 100 visitors drunk
Get 1000 visitors drunk
Get 10,000 visitors drunk
Get 100,000 visitors drunk
Heal 100 visitors
Heal 1000 visitors
Heal 10000 visitors
Heal 100000 visitors
Entertain 100 visitors
Entertain 1000 visitors
Entertain 10000 visitors
Entertain 100000 visitors
Make magic scrolls for 100 visitors
Make magic scrolls for 1000 visitors
Make magic scrolls for 10000 visitors
Make magic scrolls for 100000 visitors
Open the second tavern
Open the third tavern
Open the fourth tavern
Fully upgrade the first tavern
Fully upgrade the second tavern
Fully upgrade the third tavern
Fully upgrade the fourth tavern