Here is the full list of all 15 Tavernier achievements.
Reach both 100%cool and 100%pro in a single game
Reach 400 customers and 100% cool
Beat the game in less than 40 weeks
Meet the spirits' leader
Buy 30 ingredients
Reach 100% tipping power and 100% pro
Meet the zombies' leader
Beat the game in 52 weeks
Beat the game
Stock more than 100 mana
Meet two different faction leaders
Shrug 20 times across games
Buy 24 ingredients
Make a second wish!
Make a wish!