Earn a Gold medal in a Coordinated Defense Multiplayer Mission.
Earn a Bronze (or better) medal in a Coordinated Defense Multiplayer mission.
Enable a Tower Augmentation Item on 10 Towers.
Earn a gold medal on every mission in Story mode.
Earn a silver medal (or better) on all missions in the Story mode.
Complete the single player campaign in Story Mode.
Win a Gold medal on Mission 19 without using the Command Shuttle.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
Build and fully upgrade each tower type in one mission.
Build every tower and every upgrade for each tower.
Play a DG Fighter Multiplayer mission.
Earn a Victory in a DG FighterMultiplayer mission.
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
Using only Inferno towers, Win any Chapter 4 (or later) mission.
Using only Cannon towers, Win any Chapter 4 (or later) mission.
Build 100 Temporal towers.
Build 100 Concussion towers.
Build 100 Missile towers.
Build 100 Boost towers.
Kill 10,000 aliens.
Survive 100 waves on any Super Grinder challenge mode.
Build 100 Laser towers.
Survive 100 waves on Grinder challenge mode on any mission.
Use the Core Teleport special weapon (Professor Taylor).
Build 100 Tesla towers.
Using only Gun towers, Win any chapter 4 (or later) mission.
Beat a Chapter 4 mission or higher with zero cores captured.
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Use the Temporal Cannon Special Weapon (Colonel Rissler).
Build 100 Inferno towers.
Build 100 Cannon towers.
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Use the Resource Reinforcement Special Weapon (Professor Briel).
Use the command shuttle to move 6 map sections in Mission 6.
Enable a Tower Augmentation item on any tower.
Inspect 10 aliens.
Build 100 Meteor towers.
Build at least 1 of each tower type in any single mission.
Win a mission with at least 10,000 resources remaining.
Build 50 towers of any type in one mission.
Sell 10 towers or more in a single mission.
Sell 10 towers.
Win a mission with at least 5,000 resources remaining.
Win a mission with at least 1,000 resources remaining.
Build 100 Gun towers.
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Kill 1000 aliens.
Finish all the missions in Chapter 1 in Story Mode.
Save a core that is less than 10 seconds away from the map's exit point.
Use the speed up control at 3x for a total of 60 seconds in any mission.
Kill 100 aliens.
Earn a Gold Medal.
Recover a loose core.
Kill an alien carrying a power core.
Use the reload checkpoint option five times in a single mission.
Build 20 towers of any type in one mission.
Win any mission without selling any towers.
Use the Reload Checkpoint option.
Use the Orbital Laser Special Weapon (General Cai).
Earn a silver (or better) medal.
Kill 1 alien.
Earn a Bronze (or better) medal in a Single Player Mission.
Upgrade a level 1 tower to a level 2 tower.
Earn 100 Gold Medals on any missions.
Kill 50,000 aliens.
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