Here is the full list of all 63 Defense Grid 2 trophies - there are 58 bronze, 3 silver, 1 gold and 1 platinum.
Unlock all trophies for Defense Grid 2.
Earn 100 Gold Medals on any missions.
Kill 50,000 aliens.
Enable a Tower Augmentation Item on 10 Towers.
Earn a Gold medal in a Coordinated Defense Multiplayer Mission.
Using only Inferno towers, Win any chapter 4 (or later) mission.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
Earn a gold medal on every mission in Story mode.
Earn a silver medal (or better) on all missions in the Story mode.
Win a Gold medal on mission 19 without using the Command Shuttle.
Build 100 Temporal towers.
Build 100 Missile towers.
Using only Cannon towers, Win any chapter 4 (or later) mission.
Using only Gun towers, Win any chapter 4 (or later) mission.
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
Win a mission with at least 10,000 resources remaining.
Survive 100 waves on any Super Grinder challenge mode.
Use the command shuttle to move 6 map sections in Mission 6.
Survive 100 waves on Grinder challenge mode on any mission.
Complete the single player campaign in Story Mode.
Use the Core Teleport special weapon (Professor Taylor).
Build 100 Cannon towers.
Kill 10,000 aliens.
Build every tower and every upgrade for each tower.
Beat a Chapter 4 mission or higher with zero cores captured.
Build and fully upgrade each tower type in one mission.
Build 100 Concussion towers.
Build 100 Tesla towers.
Build 100 Meteor towers.
Build 100 Laser towers.
Use the reload checkpoint option five times in a single mission.
Build 100 Inferno towers.
Use the Reload Checkpoint option.
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Use the speed up control for a total of 60 seconds in any mission.
Inspect 10 aliens.
Build 100 Gun towers.
Use the Temporal Cannon Special Weapon (Colonel Rissler).
Use the Resource Reinforcement Special Weapon (Professor Briel).
Build 1 of each tower type in any single mission.
Build 100 Boost towers.
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Save a core that is less than 10 seconds away from the map's exit point.
Enable a Tower Augmentation item on any tower.
Kill 1000 aliens.
Finish all the missions in Chapter 1 in Story Mode.
Build 50 towers of any type in one mission.
Win a mission with at least 5,000 resources remaining.
Sell 10 towers or more in a single mission.
Sell 10 towers.
Kill an alien carrying a power core.
Recover a loose core.
Kill 100 aliens.
Build 20 towers of any type in one mission.
Upgrade a tower.
Earn a Gold Medal.
Earn a Bronze (or better) medal in a Single Player Mission.
Win any mission without selling any towers.
Win a mission with at least 1,000 resources remaining.
Earn a silver (or better) medal.
Kill 1 alien.
Use the Orbital Laser Special Weapon (General Cai).