Reached level 10 on Easy difficulty
Reached level 25 on Easy difficulty
Reached level 50 on Easy difficulty
Reached level 10 on Medium difficulty
Reached level 25 on Medium difficulty
Reached level 50 on Medium difficulty
Reached level 10 on Hard difficulty
Reached level 25 on Hard difficulty
Reached level 50 on Hard difficulty
Built one of every tower
Upgrade a tower to its maximum level
Built 20 towers on a map
Destroyed 250 enemies
Destroyed 1000 enemies
Destroyed 5000 enemies
Earned a total of 250,000 resources
Finished a game
Pressed F to pay respects
Survived 20 minutes of continuous spawning - easy
Survived 20 minutes of continuous spawning - medium
Survived 20 minutes of continuous spawning - hard