Here is the full list of all 65 Defense Grid 2 achievements.
Earn 100 Gold Medals on any missions.
Kill 50,000 aliens.
Enable a Tower Augmentation Item on 10 Towers.
Build 100 Temporal towers.
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
Earn a gold medal on every mission in Story mode.
Build 100 Concussion towers.
Complete the single player campaign 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 Meteor towers.
Build 100 Tesla towers.
Build 100 Missile towers.
Use the command shuttle to move 6 map sections in Mission 6.
Build 100 Laser towers.
Survive 100 waves on any Super Grinder challenge mode.
Use the Core Teleport special weapon (Professor Taylor).
Survive 100 waves on Grinder challenge mode on any mission.
Kill 10,000 aliens.
Play a Competitive Multiplayer mission.
Earn a Victory in a DG Fighter Multiplayer mission.
Build 100 Gun towers.
Inspect 10 aliens.
Build 100 Cannon towers.
Using only Cannon towers, Win any chapter 4 (or later) mission.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
Beat a Chapter 4 mission or higher with zero cores captured.
Build every tower and every upgrade for each tower.
Build and fully upgrade each tower type in one mission.
Using only Inferno towers, Win any chapter 4 (or later) mission.
Build 100 Inferno towers.
Using only Gun towers, Win any chapter 4 (or later) mission.
Finish all the missions in Chapter 1 in Story Mode.
Use the Reload Checkpoint option.
Use the reload checkpoint option five times in a single mission.
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Use the speed up control at 3x for a total of 60 seconds in any mission.
Sell 10 towers.
Sell 10 towers or more in a single mission.
Earn a silver (or better) medal.
Earn a Gold Medal.
Earn Bronze on a Single Player mission.
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Win a mission with at least 10,000 resources remaining.
Build 50 towers of any type in one mission.
Build 1 of each tower type in any single mission.
Use the Temporal Cannon Special Weapon (Colonel Rissler).
Build 100 Boost towers.
Kill 1000 aliens.
Win a mission with at least 5,000 resources remaining.
Use the Resource Reinforcement Special Weapon (Professor Briel).
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Enable a Tower Augmentation item on any tower.
Build 20 towers of any type in one mission.
Use the Orbital Laser Special Weapon (General Cai).
Save a core that is less than 10 seconds away from the map's exit point.
Kill 100 aliens.
Kill 1 alien.
Win a mission with at least 1,000 resources remaining.
Recover a loose core.
Kill an alien carrying a power core.
Upgrade a level 1 tower to a level 2 tower.
Win any mission without selling any towers.
Earn Bronze in a Co-Op Multiplayer mission.
Earn Gold in a Co-Op Multiplayer mission.