Humble Beginnings 20 Complete your first map.
The Bas(e)ics 20 Build 20 tower bases.
The Best Defense is Offense 20 Upgrade a tower to the max.
Growing Stronger 20 Complete a map with a Feat of Strength enabled.
Halfway Awesome 50 Reach Rank 10.
Hope Rides Alone 50 Complete Facility, Rocky Fields, Giant Trees and Swamp.
Full-time Ass-kicker 50 Reach rank 20.
Hercules 25 Complete a map with 5 Feats of Strength enabled.
Total Badass 75 Complete Facility, Rocky Fields, Giant Trees and Swamp with 5 Feats of Strength enabled.
Final Destination 25 Complete The End in a party of four.
Team Player 25 Complete one level with 5 Feats of Strength enabled in Co-op.
Game In A Game 20 Beat a Game In A Game.