Here is the full list of all 22 12 Labours of Hercules achievements. It takes around 5-6 hours to unlock all of the achievements on Windows.
Call upon any 4 servants with the «Run faster!» bonus.
Complete 3 levels in Gold time.
Complete 2 levels in Gold time with at least 10 seconds remaining.
Beat your own Gold record.
Tap 100 times anywhere on the screen while playing a single level.
Servant must collect one resource once all objectives have been met.
Complete a level in Gold time without using any bonuses.
Call upon 3 different characters simultaneously.
Use the same bonus again before its time runs out.
Complete a mini-game without losing any health points.
Call upon 5 characters.
Call upon any 3 servants using the «Work faster!» bonus.
Use 2 different bonuses together.
Four servants at the house.
Collect 100 golds.
Complete 20 levels in Gold time!
Use the «Stop the clock!» bonus three times in one level.
Collect 100 supplies.
Collect 30+ resources using the «More resources!» bonus.
Complete all mini-games perfectly!
Complete all levels in Gold time!
Earn every achievement!