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