Humble Beginnings - Complete your first map.
The Bas(e)ics - Build 20 tower bases.
The Best Defense is Offense - Upgrade a tower to the max.
Growing Stronger - Complete a map with a Feat of Strength enabled.
Hercules - Complete a map with 5 Feats of Strength enabled.
Team Player - Complete one level with 5 Feats of Strength enabled in Co-op.
Game In A Game - Complete a game in a game.
Halfway Awesome - Reach Rank 10.
Hope Rides Alone - Complete Facility, Rocky Fields, Giant Trees and Swamp.
Full-time Ass-kicker - Reach rank 20.
Final Destination - Complete The End in a party of four.
Total Badass - Complete Facility, Rocky Fields, Giant Trees and Swamp with 5 Feats of Strength enabled.