Earn a gold medal on all missions in the Story mode.
Kill 10,000 aliens.
Build 20 towers in one mission.
Complete the Story mode.
Earn a gold medal on any 35 missions in the You Monster campaign.
Earn a gold medal on all story challenge missions in the You Monster campaign.
Finish the first 3 missions.
Build 5 Inferno towers.
Earn a gold medal on the Story and Story Challenge modes of Ghost in the Machine and Divided Attention.
Earn a gold medal on the Campaign mode of Risk Exposure and Roundabout.
Earn a gold medal on the Campaign mode of Urban Planning and Tactical Diversion.
Prevent the aliens from stealing a core until they have arrived safely at the second core housing in the Story or Story Challenge mode of Auger.
Save a core less than 10 seconds away from the map exit.
Earn a gold medal on the Campaign mode of Service Interruption and Height of Confusion.
Use speed up controls for a total of 30 seconds in any one mission.
Earn a Gold medal on all 40 modes in the Containment campaign.
Fire the orbital laser.
Build all tower types in one mission.
Kill 100 aliens.
Destroy 1000 aliens.
Earn a gold medal on 10 challenge modes in the You Monster campaign.
Earn at least one silver medal.
Win with 10,000 resources remaining.
Beat an advanced mission with only Inferno towers.
Kill 1 alien.
Earn at least one gold medal.
Earn a gold medal on an adrenaline challenge mode.
Earn a Gold medal on any Containment mission without going back to a save checkpoint.
Build 50 towers in one mission.
Build all upgrades of all tower types in one mission.
Beat an advanced mission with only level 3 towers and no selling.
Earn at least a Bronze medal on all 40 modes in the Containment campaign.
Build 5 Meteor towers.
Beat an advanced mission with only Gun towers.
Recover a loose core.
Build 5 Concussion towers.
Kill an alien carrying a power core.
Build 5 Tesla towers.
Sell 10 towers in a single mission.
Activate reconnaissance system.
Build 5 Cannon towers.
Begin playing any mode of the Containment Campaign.
Build 5 Gun towers.
Sell 5 towers.
Earn a bronze medal on all story missions in the You Monster campaign.
Survive 100 waves on any Super Grinder challenge mode.
Earn a gold medal on any 100 missions in The Awakening campaign.
Beat an advanced mission with only level 1 towers.
Earn a silver medal on all story missions in the You Monster campaign.
Win mission with the last core less than 10 seconds away from the map exit.
No towers sold in a single mission.
Build 5 Temporal towers.
Beat all 5 "Out of Bullets" challenge modes without using Gun or Cannon towers.
Earn a Gold medal in the Campaign Reversed mode of Passage without building any Meteor or Missile towers or using the Orbital Laser.
Earn a gold medal on all the modes of Overflow.
Build 5 Command towers.
Win with 5,000 resources remaining.
Build 5 Laser towers.
Earn at least a silver medal on the Story or Story Challenge mode of Divided Attention.
Earn a silver medal on all missions in the Story mode.
Build 6 towers within 10 seconds.
Shoot down flying alien carrying a core.
Earn a gold medal on the Campaign mode of Kill Zone and Overflow.
Witness 1 core handed off 10 times within 20 seconds.
Reload an earlier save checkpoint.
Reload an earlier save checkpoint five times in a single mission.
Destroy at least one boss alien.
Earn a gold medal on any story mission past 'Divided Attention' in the You Monster campaign.
Shoot down a flying alien.
Beat an advanced mission with only Cannon towers.
Survive 100 waves on the Grinder challenge mode.
Earn at least a Bronze medal on the Story or Story Challenge mode of Foothold building ten towers or less without selling.
Earn a gold medal on any 150 missions in The Awakening campaign.
Win with 1,000 resources remaining.
Earn at least a Bronze medal on the Story or Story Challenge mode of Occupation using only Gun, Inferno, and Laser towers.
Earn at least a Bronze medal on all eight Story modes in the Containment campaign.
Alien time until exit exceeds 5 minutes.
Build 5 Missile towers.
Earn a Gold medal on the Story or Story Challenge mode of Volition building fifteen towers or less without selling.
Build every tower and upgrade.
Earn a Gold medal on all eight Story modes in the Containment campaign.
Beat an advanced mission with zero cores captured.
Gain 10000 resources from interest in a single mission.
Inspect 10 aliens.
Kill 50,000 aliens.
Upgrade a tower.
Earn a gold medal on all story missions in the You Monster campaign.