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