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