Siege Breaker
Survive all 99 waves on any Grinder challenge mode.
25 ✓ August 9th, 2010
Base Defender
Complete the Story mode in The Awakening campaign.
20 ✓ August 9th, 2010
Planet Defender
Earn at least a silver medal on all Story mode missions in The Awakening campaign.
20 ✓ August 9th, 2010
Exterminator
Destroy 1000 aliens.
20 ✓ August 8th, 2010
Flawless Victory
Earn at least one gold medal in any mission after The Awakening.
15 ✓ August 9th, 2010
Nail Biter
Win a mission with the last remaining core less than 10 seconds away from the map exit.
15 ✓ August 9th, 2010
Field Promotion
Earn at least one silver medal in any mission after The Awakening.
10 ✓ August 9th, 2010
Circular Hazard
Earn a gold medal on the Campaign mode of Risk Exposure and Roundabout.
10 ✓ August 11th, 2010
Combat Turmoil
Earn a gold medal on the Campaign mode of Service Interruption and Height of Confusion.
10 ✓ August 11th, 2010
Civil Divergence
Earn a gold medal on the Campaign mode of Urban Planning and Tactical Diversion.
10 ✓ August 11th, 2010
Regional Deluge
Earn a gold medal on the Campaign mode of Kill Zone and Overflow.
10 ✓ August 14th, 2010
Overflowing
Earn a gold medal on all the modes of Overflow.
10 ✓ August 17th, 2010
Death From Above
Fire the orbital laser.
10 ✓ August 8th, 2010
Tower Expert
Build at least one of every tower type and available upgrade.
10 ✓ August 9th, 2010
Salvage Rights
Destroy at least one boss alien.
5 ✓ August 8th, 2010
Master Strategist
Earn a gold medal on at least 40 Story or Challenge mode missions in any campaign.
30 
Alien Tears
Earn at least a gold medal on all Story mode missions in The Awakening campaign.
20 
Majestic Pony
Earn a bronze medal on all story missions in the You Monster campaign.
10 
Savant Genius
Earn a gold medal on any story mission past 'Divided Attention' in the You Monster campaign.
10 
Beating a Dead Potato
Earn a gold medal on any 35 missions in the You Monster campaign.
10 
Best Friends Forever
Earn a gold medal on all story challenge missions in the You Monster campaign.
10 
You Monster
Earn a gold medal on all story missions in the You Monster campaign.
10