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