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