| Achievement | How to unlock
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| 10 Items No less (10 points) | Enable a Tower Augmentation Item on 10 Towers.
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| Alien Tears (10 points) | Earn a gold medal on every mission in Story mode.
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| Annihilator (10 points) | Kill 10,000 aliens.
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| Arsenal (10 points) | Build 20 towers of any type in one mission.
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| Base Defender (100 points) | Complete the single player campaign in Story Mode.
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| Boot Camp (10 points) | Finish all the missions in Chapter 1 in Story Mode.
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| Brothers In Arms (10 points) | Earn a Bronze (or better) medal in a Coordinated Defense Multiplayer mission.
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| Burn Baby Burn (10 points) | Build 100 Inferno towers.
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| Close Call (10 points) | Save a core that is less than 10 seconds away from the map's exit point.
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| Confident (10 points) | Use the speed up control at 3x for a total of 60 seconds in any mission.
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| Death From Above (10 points) | Use the Orbital Laser Special Weapon (General Cai).
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| Diversity (10 points) | Build at least 1 of each tower type in any single mission.
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| Eradicator (10 points) | Kill 100 aliens.
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| Exterminator (10 points) | Kill 1000 aliens.
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| Field Promotion (10 points) | Earn a silver (or better) medal.
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| Filthy Rich (30 points) | Win a mission with at least 10,000 resources remaining.
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| Firebug (10 points) | Using only Inferno towers, Win any Chapter 4 (or later) mission.
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| First Blood (10 points) | Kill 1 alien.
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| Flawless Victory (10 points) | Earn a Gold Medal.
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| Full Defense (10 points) | Build 50 towers of any type in one mission.
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| Full House (10 points) | Build and fully upgrade each tower type in one mission.
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| Full Potential (10 points) | Win a chapter 4 (or later) mission with level 3 towers only and no selling.
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| Go Team! (10 points) | Earn a Gold medal in a Coordinated Defense Multiplayer Mission.
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| Go To Your Home (10 points) | Use the Core Teleport special weapon (Professor Taylor).
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| Great Ball of Fire (10 points) | Build 100 Meteor towers.
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| Gun Crazy (30 points) | Using only Gun towers, Win any chapter 4 (or later) mission.
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| Happy Returns (10 points) | Recover a loose core.
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| Head Trauma (10 points) | Build 100 Concussion towers.
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| Hey! That's mine! (10 points) | Kill an alien carrying a power core.
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| High Voltage (10 points) | Build 100 Tesla towers.
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| If At First You Don't Succeed, Retry Again (10 points) | Use the reload checkpoint option five times in a single mission.
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| Indecisive (10 points) | Sell 10 towers or more in a single mission.
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| Kaboom! (10 points) | Build 100 Cannon towers.
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| Leadhead (10 points) | Build 100 Gun towers.
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| Liquidator (10 points) | Sell 10 towers.
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| Master Builder (10 points) | Use the command shuttle to move 6 map sections in Mission 6.
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| Master Siege Breaker (55 points) | Survive 100 waves on any Super Grinder challenge mode.
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| Master Strategist (100 points) | Earn 100 Gold Medals on any missions.
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| Minimalist (10 points) | Using only level 1 towers, Win any Chapter 4 (or later) mission.
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| More Please (10 points) | Use the Resource Reinforcement Special Weapon (Professor Briel).
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| No Fast Blast (10 points) | Use the Temporal Cannon Special Weapon (Colonel Rissler).
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| No Sale (10 points) | Win any mission without selling any towers.
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| Not So Fast (10 points) | Build 100 Temporal towers.
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| Now With Sprinkles (10 points) | Enable a Tower Augmentation item on any tower.
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| Penny Pincher (10 points) | Win a mission with at least 5,000 resources remaining.
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| Pew Pew (10 points) | Build 100 Laser towers.
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| Planet Defender (30 points) | Earn a silver medal (or better) on all missions in the Story mode.
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| Pumped Up Towers (10 points) | Use the Tower Overcharge Special Weapon (Advisor Zacara).
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| Retry (5 points) | Use the Reload Checkpoint option.
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| Salvage Rights (10 points) | Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
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| Shell-shocked (10 points) | Using only Cannon towers, Win any Chapter 4 (or later) mission.
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| Shoot That Guy (10 points) | Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
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| Siege Breaker (55 points) | Survive 100 waves on Grinder challenge mode on any mission.
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| Surplus (10 points) | Win a mission with at least 1,000 resources remaining.
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| Thanks for Playing! (5 points) | Earn a Bronze (or better) medal in a Single Player Mission.
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| The Not-So-Friendly Skies (10 points) | Build 100 Missile towers.
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| The Path Most Traveled (10 points) | Win a Gold medal on Mission 19 without using the Command Shuttle.
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| Tower Expert (10 points) | Build every tower and every upgrade for each tower.
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| Untouchable (30 points) | Beat a Chapter 4 mission or higher with zero cores captured.
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| Warning Shots (10 points) | Play a DG Fighter Multiplayer mission.
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| What IS that? (10 points) | Inspect 10 aliens.
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| Winning Shots (10 points) | Earn a Victory in a DG FighterMultiplayer mission.
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| Would you like a boost with that? (5 points) | Build 100 Boost towers.
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| Xenocide (30 points) | Kill 50,000 aliens.
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| Yellow Beats Green (5 points) | Upgrade a level 1 tower to a level 2 tower.
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