21 / 22 (96%)
Gamerscore 290 / 300

Found 22 achievements for Gamerscore 300

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  • Salvage Rights 952
    Destroy at least one boss alien.
    Main Storyline

    Unlocked 04-01-2011 06:10 PM

    Gamerscore 5
    Score
    74%
    Common
  • Field Promotion 1,020
    Earn at least one silver medal in any mission after The Awakening.
    Stackable

    Unlocked 04-03-2011 01:14 AM

    Gamerscore 10
    Score
    79%
    Common
  • Death From Above 619
    Fire the orbital laser.

    Unlocked 04-02-2011 12:46 AM

    Gamerscore 10
    Score
    48%
    Uncommon
  • Tower Expert 369
    Build at least one of every tower type and available upgrade.

    Unlocked 04-05-2011 02:17 AM

    Gamerscore 10
    Score
    28%
    Rare
  • Flawless Victory 884
    Earn at least one gold medal in any mission after The Awakening.

    Unlocked 04-03-2011 01:14 AM

    Gamerscore 15
    Score
    69%
    Common
  • Nail Biter 299
    Win a mission with the last remaining core less than 10 seconds away from the map exit.
    Time-Limited

    Unlocked 04-05-2011 01:35 AM

    Gamerscore 15
    Score
    23%
    Rare
  • Base Defender 275
    Complete the Story mode in The Awakening campaign.
    Main Storyline Stackable

    Unlocked 04-05-2011 01:54 PM

    Gamerscore 20
    Score
    21%
    Rare
  • Planet Defender 221
    Earn at least a silver medal on all Story mode missions in The Awakening campaign.
    Stackable

    Unlocked 04-08-2011 01:27 AM

    Gamerscore 20
    Score
    17%
    Rare
  • Exterminator 760
    Destroy 1000 aliens.
    Main Storyline Cumulative

    Unlocked 04-01-2011 06:55 PM

    Gamerscore 20
    Score
    59%
    Common
  • Alien Tears 212
    Earn at least a gold medal on all Story mode missions in The Awakening campaign.
    Stackable

    Unlocked 12-23-2011 07:44 PM

    Gamerscore 20
    Score
    16%
    Rare
  • Siege Breaker 321
    Survive all 99 waves on any Grinder challenge mode.

    Unlocked 04-06-2011 02:00 AM

    Gamerscore 25
    Score
    25%
    Rare
  • Master Strategist 183
    Earn a gold medal on at least 40 Story or Challenge mode missions in any campaign.

    Unlocked 12-22-2011 01:23 AM

    Gamerscore 30
    Score
    14%
    Very Rare
  • Add-on: Resurgence Map Pack 1

    • 1 achievement for Gamerscore 10
    • 169 owners
    • 06-02-2010
    • View in Store
  • Combat Turmoil 155
    Earn a gold medal on the Campaign mode of Service Interruption and Height of Confusion.
    DLC

    Unlocked 08-23-2011 12:54 AM

    Gamerscore 10
    Score
    91%
    Common
  • Add-on: Resurgence Map Pack 2

    • 1 achievement for Gamerscore 10
    • 155 owners
    • 06-09-2010
    • View in Store
  • Circular Hazard 142
    Earn a gold medal on the Campaign mode of Risk Exposure and Roundabout.
    DLC

    Unlocked 08-27-2011 10:57 PM

    Gamerscore 10
    Score
    91%
    Common
  • Add-on: Resurgence Map Pack 3

    • 1 achievement for Gamerscore 10
    • 152 owners
    • 06-16-2010
    • View in Store
  • Civil Divergence 140
    Earn a gold medal on the Campaign mode of Urban Planning and Tactical Diversion.
    DLC

    Unlocked 12-16-2011 05:05 AM

    Gamerscore 10
    Score
    92%
    Common
  • Add-on: Resurgence Map Pack 4

    • 2 achievements for Gamerscore 20
    • 149 owners
    • 06-23-2010
    • View in Store
  • Regional Deluge 137
    Earn a gold medal on the Campaign mode of Kill Zone and Overflow.
    DLC

    Unlocked 08-25-2011 07:17 AM

    Gamerscore 10
    Score
    91%
    Common
  • Overflowing 132
    Earn a gold medal on all the modes of Overflow.
    DLC

    Unlocked 12-17-2011 01:48 AM

    Gamerscore 10
    Score
    88%
    Common
  • Add-on: Defense Grid: You Monster

    • 5 achievements for Gamerscore 50
    • 136 owners
    • 12-07-2011
    • View in Store
  • Majestic Pony 109
    Earn a bronze medal on all story missions in the You Monster campaign.
    DLC Stackable

    Unlocked 12-22-2011 10:19 PM

    Gamerscore 10
    Score
    80%
    Common
  • Savant Genius 120
    Earn a gold medal on any story mission past 'Divided Attention' in the You Monster campaign.
    DLC

    Unlocked 12-08-2011 09:15 AM

    Gamerscore 10
    Score
    88%
    Common
  • Beating a Dead Potato 88
    Earn a gold medal on any 35 missions in the You Monster campaign.
    DLC
    Gamerscore 10
    Score
    64%
    Common
  • Best Friends Forever 93
    Earn a gold medal on all story challenge missions in the You Monster campaign.
    DLC

    Unlocked 12-13-2011 04:51 AM

    Gamerscore 10
    Score
    68%
    Common
  • You Monster 105
    Earn a gold medal on all story missions in the You Monster campaign.
    DLC

    Unlocked 12-22-2011 10:19 PM

    Gamerscore 10
    Score
    77%
    Common

Showing 22 of 22 achievements total