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.
Call upon 5 characters.
Collect 30+ resources using the «More resources!» bonus.
Four servants at the house.
Use the «Stop the clock!» bonus three times in one level.
Collect 100 supplies.
Complete 20 levels in Gold time!
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 mini-game without losing any health points.
Complete a level in Gold time without using any bonuses.
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.
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.