Here is the full list of all 65 Defense Grid 2 achievements.
Build 100 Temporal towers.
Use the command shuttle to move 6 map sections in Mission 6.
Build 100 Concussion towers.
Kill 50,000 aliens.
Build 100 Tesla towers.
Build 100 Missile towers.
Build 100 Meteor towers.
Build 100 Laser towers.
Using only Cannon towers, Win any chapter 4 (or later) mission.
Inspect 10 aliens.
Using only Gun 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 Cannon towers.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
Build every tower and every upgrade for each tower.
Build and fully upgrade each tower type in one mission.
Build 100 Boost towers.
Survive 100 waves on any Super Grinder challenge mode.
Sell 10 towers.
Build 50 towers of any type in one mission.
Sell 10 towers or more in a single mission.
Build 1 of each tower type in any single mission.
Survive 100 waves on Grinder challenge mode on any mission.
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
Kill 10,000 aliens.
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).
Use the reload checkpoint option five times in a single mission.
Use the Tower Overcharge Special Weapon (Advisor Zacara).
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).
Use the Resource Reinforcement Special Weapon (Professor Briel).
Build 100 Gun towers.
Use the Orbital Laser Special Weapon (General Cai).
Finish all the missions in Chapter 1 in Story Mode.
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 an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Build 20 towers of any type in one mission.
Use the Reload Checkpoint option.
Win a mission with at least 10,000 resources remaining.
Kill 1000 aliens.
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.
Enable a Tower Augmentation Item on 10 Towers.
Play a Competitive Multiplayer mission.
Earn a Victory in a DG Fighter Multiplayer mission.
Earn Bronze in a Co-Op Multiplayer mission.
Earn Gold in a Co-Op Multiplayer mission.