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