For collecting all rare minerals

For turning off the first bucket-wheel excavator

For repairing 5 helipads

For repairing the first broken pipeline

For repairing 3 boat stations

For saving 5 cats. Careful, they might scratch!

For eliminating 15 power-line junctions from the start of the game

For searching 15 diggers’ tents

For eliminating the first fireball

For evacuating people from the mountain on level 6

For repairing two communication towers since the start of the game

For repairing the first alarm system

For repairing the acid storage on level 42

For purifying contaminated soil

For rescuing 5 dolphins from nets since the start of the game

For cleaning the pond of oil slicks on level 55

For planting 5 trees

For removing all molds on level 37

For turning off 15 jammers

For eliminating short circuits on level 43

For the first excavation of mineral deposits

For stocking the pond on level 24

For eliminating 10 methane emissions

For filling 3 barrels with water