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