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