Here is the full list of all 65 Defense Grid 2 achievements.
Earn Bronze in a Co-Op Multiplayer mission.
Earn Gold in a Co-Op Multiplayer mission.
Enable a Tower Augmentation Item on 10 Towers.
Use the command shuttle to move 6 map sections in Mission 6.
Complete the single player campaign in Story Mode.
Earn a silver medal (or better) on all missions in the Story mode.
Earn a gold medal on every mission in Story mode.
Win a Gold medal on mission 19 without using the Command Shuttle.
Use the Core Teleport special weapon (Professor Taylor).
Using only Cannon towers, Win any chapter 4 (or later) mission.
Using only level 1 towers, Win any Chapter 4 (or later) 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.
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Use the Temporal Cannon Special Weapon (Colonel Rissler).
Build every tower and every upgrade for each tower.
Build 1 of each tower type in any single mission.
Build and fully upgrade each tower type in one mission.
Using only Gun towers, Win any chapter 4 (or later) mission.
Beat a Chapter 4 mission or higher with zero cores captured.
Build 50 towers of any type in one mission.
Sell 10 towers or more in a single mission.
Build 100 Gun towers.
Build 100 Inferno towers.
Build 100 Temporal towers.
Build 100 Missile towers.
Earn 100 Gold Medals on any missions.
Build 100 Concussion towers.
Kill 50,000 aliens.
Build 100 Meteor towers.
Build 100 Cannon towers.
Play a Competitive Multiplayer mission.
Earn a Victory in a DG Fighter Multiplayer mission.
Build 100 Boost towers.
Build 100 Tesla towers.
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Survive 100 waves on any Super Grinder challenge mode.
Use the Resource Reinforcement Special Weapon (Professor Briel).
Use the reload checkpoint option five times in a single mission.
Build 20 towers of any type in one mission.
Enable a Tower Augmentation item on any tower.
Survive 100 waves on Grinder challenge mode on any mission.
Kill 10,000 aliens.
Sell 10 towers.
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Finish all the missions in Chapter 1 in Story Mode.
Build 100 Laser towers.
Use the Orbital Laser Special Weapon (General Cai).
Win a mission with at least 10,000 resources remaining.
Save a core that is less than 10 seconds away from the map's exit point.
Inspect 10 aliens.
Use the Reload Checkpoint option.
Kill 1000 aliens.
Win any mission without selling any towers.
Kill 100 aliens.
Win a mission with at least 5,000 resources remaining.
Recover a loose core.
Kill an alien carrying a power core.
Earn a silver (or better) medal.
Earn a Gold Medal.
Win a mission with at least 1,000 resources remaining.
Upgrade a level 1 tower to a level 2 tower.
Use the speed up control at 3x for a total of 60 seconds in any mission.
Earn Bronze on a Single Player mission.
Kill 1 alien.