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