Portal: Prelude, as its name states it, is an unofficial prequel to the game Portal. Its story revolves around the pre-GlaDOS epoch, even before she was plugged in. At this time, test subjects were monitored by real Aperture Science employees, whose work was tedious, lengthy and repetitive. This is why they decided to build a great artificial intelligence that could both replace them in these difficult tasks, and also take responsibility for many other tasks within the complex and compete with Black Mesa's superiority. All employees of the Aperture Science complex are now eagerly awaiting GlaDOS. Maybe even a little too eagerly, as the upcoming events will tell... This game is totally free. It offers a bit more gameplay hours than the original Portal, with 8 chapters, 19 test chambers, 48 challenges, 6 advanced maps, a brand new storyline and more than 400 lines of english speech with dozens of subtitles translations.

Members Watching  (0 - 50 of 1,082)
Avatar

Australia aelk5579

Online 6 years ago Joined Oct 9, 2008
Avatar

Canada gtabmx

Online 6 years ago Joined Oct 9, 2008
Avatar

United States theSlex

Online 6 years ago Joined Nov 17, 2004
Avatar

United States powerslave

Online 6 years ago Joined Jun 25, 2004
Avatar

United Kingdom SoberUK

Online 6 years ago Joined Feb 6, 2007
Avatar

United States Deja

Online 6 years ago Joined May 3, 2007
Avatar

France Yunge

Online 6 years ago Joined Jan 5, 2009
Avatar

United States Thunderforge

Online 6 years ago Joined Jan 19, 2009
Avatar

United Kingdom Oliver

Online 6 years ago Joined Jan 30, 2009
Avatar

United States AbNo

Online 6 years ago Joined Feb 1, 2009
Avatar

India karthick

Online 6 years ago Joined Feb 4, 2009
Avatar

China ksana

Online 6 years ago Joined Feb 3, 2009
Avatar

Sweden Kuylen

Online 6 years ago Joined Aug 7, 2008
Avatar

Denmark SeeEh

Online 6 years ago Joined Jan 19, 2009
Avatar

Canada mathieumg

Online 6 years ago Joined Aug 25, 2005
Avatar

United Kingdom stonecold23

Online 6 years ago Joined Nov 14, 2007
Avatar

United States mchiggins11

Online 6 years ago Joined Dec 5, 2005
Avatar

United States FPSUHalcyon

Online 5 years ago Joined Feb 27, 2008
Avatar

United Kingdom bangell99

Online 5 years ago Joined Jun 19, 2008
Avatar

United States carrickporter

Online 5 years ago Joined Feb 14, 2007
Avatar

Australia Game-via-justice

Online 5 years ago Joined Apr 16, 2009
Avatar

Poland srodax

Online 5 years ago Joined Jul 24, 2009
Avatar

Australia Suranyi

Online 5 years ago Joined Aug 29, 2009
Avatar

United States devin38

Online 5 years ago Joined Jan 31, 2008
Avatar

Germany vIiRuS_

Online 5 years ago Joined Jul 13, 2008
Avatar

Germany Feel-X

Online 5 years ago Joined Mar 3, 2006
Avatar

United States soccerman

Online 5 years ago Joined Dec 30, 2008
Avatar

Germany daniboy_999

Online 5 years ago Joined Sep 10, 2007
Avatar

United States Nightshade08

Online 5 years ago Joined Nov 9, 2005
Avatar

Switzerland RapidGames

Online 5 years ago Joined Aug 19, 2008
Avatar

United Kingdom jon_the_d

Online 5 years ago Joined Feb 28, 2009
Avatar

Brazil GMD

Online 5 years ago Joined Nov 23, 2008
Avatar

United States iMoo

Online 5 years ago Joined Sep 21, 2008
Avatar

Turkey EnsArTRance

Online 5 years ago Joined Apr 12, 2009
Avatar

United States Zander101

Online 5 years ago Joined Aug 12, 2008
Avatar

United States G71tc4

Online 5 years ago Joined Aug 22, 2008
Avatar

United States imkongkong

Online 5 years ago Joined Apr 9, 2004
Avatar

United States MrBunny

Online 5 years ago Joined Sep 14, 2006
Avatar

United States samuraikido

Online 5 years ago Joined Feb 23, 2007
Avatar

Netherlands burninwater

Online 5 years ago Joined Nov 16, 2006
Avatar

United States krautmeyer

Online 5 years ago Joined Mar 9, 2010
Avatar

France Cide

Online 5 years ago Joined Oct 11, 2005
Avatar

Togo BanMePlease

Online 5 years ago Joined Jan 28, 2005
Avatar

United States FlaMe_

Online 5 years ago Joined Jan 2, 2009
Avatar

United States Master_of_Freedom

Online 5 years ago Joined Oct 11, 2005
Avatar

Israel meirmeir

Online 5 years ago Joined Oct 6, 2008
Avatar

United States -Zeus-

Online 5 years ago Joined Jan 8, 2010
Avatar

United States ShadowWyvern

Online 5 years ago Joined Feb 22, 2009
Avatar

United States Gamer_Z.

Online 5 years ago Joined Jun 16, 2009
Avatar

United States TerranUp16

Online 5 years ago Joined Nov 13, 2005
Icon
Portal Icon
Platform
Windows
Game
Portal
Contact
Send Message
Official Page
Portalprelude.com
Release Date
Released Oct 8, 2008
Mod Watch
Track this mod
Member Statistics
Members
1,082
Online
2
Views
3,127,322
Views Today
1,010
Last Online
RaviL
RaviL Online 4 minutes ago
Kabuki-man
Kabuki-man Online 7 minutes ago
INtense!
INtense! Online 10 minutes ago
sunkenin
sunkenin Online 25 minutes ago
spiderbug2
spiderbug2 Online 28 minutes ago
sys2408
sys2408 Online 49 minutes ago
ProjecT_FalkeN
ProjecT_FalkeN Online 49 minutes ago
demon_firefox
demon_firefox Online 57 minutes ago
12negativezero
12negativezero Online 59 minutes ago
Ma1ice
Ma1ice Online 1 hour ago
bugman300
bugman300 Online 1 hour ago
Morfin
Morfin Online 1 hour ago
Nathanius
Nathanius Online 1 hour ago
Nametaken
Nametaken Online 1 hour ago
wtdtd
wtdtd Online 1 hour ago