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 levels in Gold time!
Earn every achievement!
Complete all mini-games perfectly!
Collect 100 golds.
Four servants at the house.
Use the «Stop the clock!» bonus three times in one level.
Collect 100 supplies.
Collect 30+ resources using the «More resources!» bonus.
Complete 20 levels in Gold time!
Use 2 different bonuses together.
Complete a level in Gold time without using any bonuses.
Use the same bonus again before its time runs out.
Beat your own Gold record.
Complete a mini-game without losing any health points.
Call upon 5 characters.
Call upon any 3 servants using the «Work faster!» bonus.
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.
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.