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