Related to Portal 2 game release

Portal characters in action

2000 × 2000

Aperture Science triumph note

1024 × 768

Aperture Science office desk

1680 × 1050

Portal robots in Aperture Labs

1366 × 768

Aperture Science logo with robot and deer

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GLaDOS emergency shutdown door

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Portal Companion Cube

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Portal robots in space

1366 × 768

Portal through overgrown lab

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Portal Gun Cosplay Model

1024 × 768

Companion Cube glowing

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Mordin from Mass Effect 2

1920 × 1080

Mass Effect 2 promotional art

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Miranda Lawson from Mass Effect 2

1440 × 900

Half-Life 2 City 17 wallpaper

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Half-Life 2 Episode Two

1440 × 900

Killzone 2 promotional art

1920 × 1080

Mass Effect 2 promotional art

1920 × 1080

Mordin character model

1920 × 1200

Normandy SR2 starship design

1920 × 1200

Miranda Lawson quote

2560 × 1600

space strategy game interface

1280 × 1024

Samus vs. Metroids

1024 × 768

Command & Conquer 4: Tiberian Twilight

1920 × 1080