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