Multi --> Portal 2 E3 2010 Demo Trailer #1 (HD)
269.66MB - 577 downloads - 29 June, 2010

Part 1 introduces players to Wheatley, a Personality Sphere and one of the new characters in the game (3:6)

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Multi --> Portal 2 E3 2010 Demo Trailer #2 (HD)
270.8MB - 480 downloads - 29 June, 2010

Excursion Funnels (1:49)

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Multi --> Portal 2 E3 2010 Demo Trailer #3 (HD)
71.04MB - 431 downloads - 29 June, 2010

Faith Plates (0;53)

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Multi --> Portal 2 Co-Op Trailer #2 (HD)
140.14MB - 384 downloads - 16 December, 2010

Atlas & P-body prepare for testing (1:08)

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Multi --> Portal: No Escape (Live Action Short Film by Dan Trachtenberg)
107.51MB - 340 downloads - 25 August, 2011

A woman wakes up in a room with no memory of who she is or how she got there... This is a short set in the world of the Portal video games created by Valve Software.

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PC --> Portal 2 Wheatley Trailer (HD)
299.95MB - 325 downloads - 24 August, 2010

In addition to introducing Merchant, the footage gives a deeper look into Aperture Science and shows off some of the new rendering effects in the game (3:44)

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PC --> Portal 2 E3 2010 Demo Trailer #5 (HD)
203.31MB - 291 downloads - 30 June, 2010

This clip shows off a new gameplay tool: Pneumatic Diversity Vents (1:48)

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Multi --> Portal 2 E3 2010 Demo Trailer #7 (HD)
195.94MB - 274 downloads - 1 July, 2010

This clip reveals one of the new Gel technologies: Propulsion(1:41)

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Multi --> Portal 2 E3 2010 Demo Trailer #6 (HD)
147.05MB - 271 downloads - 1 July, 2010

This clip reveals one of the new Gel technologies: Repulsion (1:17)

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Multi --> Portal 2 E3 2010 Demo Trailer #4 (HD)
205.77MB - 269 downloads - 30 June, 2010

This clip shows off a new gameplay tool: Thermal Discouragement Beams (1:57)

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Multi --> Portal 2 GamesCom 2010 Faith Plate Trailer (HD)
78.75MB - 255 downloads - 25 August, 2010

1:37 of gameplay footage

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Multi --> Portal 2 GamesCom 2010 Repulsion Gel Trailer (HD)
108.8MB - 238 downloads - 25 August, 2010

2:01 of gameplay footage

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Multi --> Portal 2 Co-Op Teaser Trailer (HD)
10.95MB - 230 downloads - 26 August, 2010

The cooperative portion of the game features different characters, challenges, and story than the single player portion of the game (0:35)

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Multi --> Portal 2 Boots Trailer (HD)
139.08MB - 226 downloads - 12 April, 2011

The last installment of the 'investment opportunity' video series (1:00)

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Multi --> Portal 2 Co-Op Trailer (HD)
96.64MB - 209 downloads - 9 September, 2010

The cooperative portion of the game features different characters, challenges, and story than the single player portion of the game (1:59)

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Multi --> Portal 2 Perpetual Testing Initiative DLC Trailer (HD)
45.43MB - 205 downloads - 29 April, 2012

Introducing the Perpetual Testing Initiative (PeTI) for Portal 2, which combines the powerful, easy-to-use Puzzle Maker and full Steam Workshop integration. Available free for the PC and Mac on May 8th.

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Multi --> Portal 2 Bot Trust Trailer (HD)
99.98MB - 203 downloads - 28 March, 2011

A new installment of the 'investment opportunity' video series (0:46)

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Multi --> Portal 2 Turrets Trailer (HD)
78.28MB - 201 downloads - 5 April, 2011

A new installment of the 'investment opportunity' video series (0:50)

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Multi --> Portal 2 Valentine's Day Trailer (HD)
75.43MB - 200 downloads - 15 February, 2011

Romance Safety Compliance Guide (1:43)

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Multi --> Portal 2 Panels Trailer (HD)
57.13MB - 195 downloads - 22 March, 2011

One of the many lucrative products in development at the applied sciences company (0:40)

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Multi --> Portal 2 Pneumatic Diversity Vent Trailer (HD)
203.31MB - 160 downloads - 25 February, 2011

1:45 of gameplay footage

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Multi --> Portal 2 Propulsion Gel Trailer (HD)
195.94MB - 155 downloads - 25 February, 2011

1:38 of gameplay footage

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Multi --> Portal 2 TV Spot (HD)
38.59MB - 155 downloads - 18 March, 2011

The Portal 2 commercial spot is heading to a TV screen near you (0:32)

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Multi --> Portal 2 Excursion Funnel Trailer (HD)
236.58MB - 150 downloads - 25 February, 2011

1:32 of gameplay footage

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Multi --> Portal 2 Thermal Discouragement Beam Trailer (HD)
205.77MB - 140 downloads - 25 February, 2011

1:54 of gameplay footage

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