Here is the full list of all 22 12 Labours of Hercules IV: Mother Nature Platinum Edition achievements.
Remove 4 obstacles using the 'Work Faster!' bonus!
Prevent thief from stealing resources during a single level!
Complete four bonus levels in Gold time!
Find 5 puzzle pieces!
Find 5 or more hidden objects on a single level!
Activate the 'Run Faster!' bonus with a complete Hermes' Obelisk!
Beat a Developer's Record!
Beat a Developer's Record 10 times!
Outsmart a thief by stealing something from him - right from under his nose!
Earn every achievement!
Complete all levels in Gold time!
Complete the super-bonus level in Gold time!
Complete 20 levels in Gold time!
Collect 100 golds.
Use 2 different bonuses together.
Call upon 5 characters.
Use the same bonus again before its time runs out.
Call upon 3 different characters simultaneously.
Complete a level in Gold time without using any bonuses.
Workers must collect one resource after all the objectives are met.
Complete 3 levels in Gold time.
Collect 100 resources of any kind with Demeter's Obelisk!