Build at least 1 of each tower type in any single mission.
Kill 100 aliens.
Kill 1000 aliens.
- Field Promotion
Earn a silver (or better) medal.
- Filthy Rich
Win a mission with at least 10,000 resources remaining.
Using only Inferno towers, Win any Chapter 4 (or later) mission.
- First Blood
Kill 1 alien.
- Flawless Victory
Earn a Gold Medal.
- Full Defense
Build 50 towers of any type in one mission.
- Full House
Build and fully upgrade each tower type in one mission.
- Full Potential
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
- Go Team!
Earn a Gold medal in a Coordinated Defense Multiplayer Mission.
- Go To Your Home
Use the Core Teleport special weapon (Professor Taylor).
- Great Ball of Fire
Build 100 Meteor towers.
- Gun Crazy
Using only Gun towers, Win any chapter 4 (or later) mission.
- Happy Returns
Recover a loose core.
- Head Trauma
Build 100 Concussion towers.
- Hey! That's mine!
Kill an alien carrying a power core.
- High Voltage
Build 100 Tesla towers.
- If At First You Don't Succeed, Retry Again
Use the reload checkpoint option five times in a single mission.
Sell 10 towers or more in a single mission.
Build 100 Cannon towers.
Build 100 Gun towers.
Sell 10 towers.
- Master Builder
Use the command shuttle to move 6 map sections in Mission 6.
- Master Strategist
Earn 100 Gold Medals on any missions.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
- More Please
Use the Resource Reinforcement Special Weapon (Professor Briel).
- No Fast Blast
Use the Temporal Cannon Special Weapon (Colonel Rissler).
- No Sale
Win any mission without selling any towers.
- Not So Fast
Build 100 Temporal towers.
- Now With Sprinkles
Enable a Tower Augmentation item on any tower.
- Penny Pincher
Win a mission with at least 5,000 resources remaining.
- Pew Pew
Build 100 Laser towers.
- Planet Defender
Earn a silver medal (or better) on all missions in the Story mode.
- Pumped Up Towers
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Use the Reload Checkpoint option.
- Salvage Rights
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Using only Cannon towers, Win any Chapter 4 (or later) mission.
- Shoot That Guy
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Win a mission with at least 1,000 resources remaining.
- 10 Items No less
Enable a Tower Augmentation Item on 10 Towers.
- Thanks for Playing!
Earn a Bronze (or better) medal in a Single Player Mission.
- The Not-So-Friendly Skies
Build 100 Missile towers.
- The Path Most Traveled
Win a Gold medal on Mission 19 without using the Command Shuttle.
- Tower Expert
Build every tower and every upgrade for each tower.
- Warning Shots
Play a DG Fighter Multiplayer mission.
- What IS that?
Inspect 10 aliens.
- Winning Shots
Earn a Victory in a DG Fighter Multiplayer mission.
- Would you like a boost with that?
Build 100 Boost towers.
Kill 50,000 aliens.
- Yellow Beats Green
Upgrade a level 1 tower to a level 2 tower.
- Master Siege Breaker
Survive 100 waves on any Super Grinder challenge mode.
- Siege Breaker
Survive 100 waves on Grinder challenge mode on any mission.
Beat a Chapter 4 mission or higher with zero cores captured.