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 Missile towers.
Build 100 Temporal towers.
Build 100 Concussion towers.
Build 100 Meteor towers.
Enable a Tower Augmentation Item on 10 Towers.
Earn Bronze in a Co-Op Multiplayer mission.
Earn Gold in a Co-Op Multiplayer mission.
Play a Competitive Multiplayer mission.
Earn a Victory in a DG Fighter Multiplayer mission.
Build 100 Laser towers.
Survive 100 waves on Grinder challenge mode on any mission.
Survive 100 waves on any Super Grinder challenge mode.
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 100 Cannon towers.
Win a Gold medal on mission 19 without using the Command Shuttle.
Use the Reload Checkpoint option.
Use the reload checkpoint option five times in a single mission.
Build 100 Tesla towers.
Use the Core Teleport special weapon (Professor Taylor).
Kill 10,000 aliens.
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
Build 100 Inferno towers.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
Using only Cannon towers, Win any chapter 4 (or later) mission.
Using only Inferno towers, Win any chapter 4 (or later) mission.
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Using only Gun towers, Win any chapter 4 (or later) mission.
Beat a Chapter 4 mission or higher with zero cores captured.
Use the command shuttle to move 6 map sections in Mission 6.
Build every tower and every upgrade for each tower.
Build and fully upgrade each tower type in one mission.
Build 1 of each tower type in any single mission.
Use the Temporal Cannon Special Weapon (Colonel Rissler).
Build 100 Gun towers.
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Enable a Tower Augmentation item on any tower.
Win a mission with at least 10,000 resources remaining.
Build 50 towers of any type in one mission.
Build 100 Boost towers.
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Use the Orbital Laser Special Weapon (General Cai).
Use the speed up control at 3x for a total of 60 seconds in any mission.
Use the Resource Reinforcement Special Weapon (Professor Briel).
Kill 1000 aliens.
Inspect 10 aliens.
Finish all the missions in Chapter 1 in Story Mode.
Win a mission with at least 5,000 resources remaining.
Sell 10 towers or more in a single mission.
Sell 10 towers.
Build 20 towers of any type in one mission.
Kill 100 aliens.
Earn a Gold Medal.
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.
Kill 1 alien.
Earn a silver (or better) 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.