Here is the full list of all 65 Defense Grid 2 achievements.
Kill 50,000 aliens.
Build 100 Temporal towers.
Build 100 Meteor towers.
Build 100 Missile towers.
Build 100 Concussion towers.
Build 100 Tesla towers.
Build 100 Laser towers.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
Earn a gold medal on every mission in Story mode.
Win a Gold medal on mission 19 without using the Command Shuttle.
Build 100 Cannon towers.
Earn a silver medal (or better) on all missions in the Story mode.
Enable a Tower Augmentation Item on 10 Towers.
Complete the single player campaign in Story Mode.
Play a Competitive Multiplayer mission.
Earn a Victory in a DG Fighter Multiplayer mission.
Build 100 Inferno towers.
Earn Bronze in a Co-Op Multiplayer mission.
Earn Gold in a Co-Op Multiplayer mission.
Using only Inferno towers, Win any chapter 4 (or later) mission.
Use the command shuttle to move 6 map sections in Mission 6.
Using only Cannon towers, Win any chapter 4 (or later) mission.
Using only Gun towers, Win any chapter 4 (or later) mission.
Use the Core Teleport special weapon (Professor Taylor).
Kill 10,000 aliens.
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.
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Beat a Chapter 4 mission or higher with zero cores captured.
Use the Temporal Cannon Special Weapon (Colonel Rissler).
Build 100 Gun towers.
Build 100 Boost towers.
Use the Resource Reinforcement Special Weapon (Professor Briel).
Finish all the missions in Chapter 1 in Story Mode.
Sell 10 towers.
Sell 10 towers or more in a single mission.
Inspect 10 aliens.
Enable a Tower Augmentation item on any tower.
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Survive 100 waves on Grinder challenge mode on any mission.
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Build 50 towers of any type in one mission.
Use the reload checkpoint option five times in a single mission.
Survive 100 waves on any Super Grinder challenge mode.
Kill 1000 aliens.
Use the Reload Checkpoint option.
Use the Orbital Laser Special Weapon (General Cai).
Save a core that is less than 10 seconds away from the map's exit point.
Win a mission with at least 10,000 resources remaining.
Build 20 towers of any type in one mission.
Kill 100 aliens.
Kill 1 alien.
Earn a silver (or better) medal.
Earn a Gold Medal.
Win a mission with at least 1,000 resources remaining.
Win a mission with at least 5,000 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.
Use the speed up control at 3x for a total of 60 seconds in any mission.
Earn Bronze on a Single Player mission.
Earn 100 Gold Medals on any missions.