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