傳送門 (Chinese Wikipedia)

Leone, Matt. Portal Preview. 1UP.com. 2006-09-08 [2006-09-11]. （原始内容存档于2007-09-27）.
Elliot, Shawn. Beyond the Box: Orange Box Afterthoughts. 1UP. 2008-02-06 [2008-02-14]. （原始内容存档于2012-12-06）.
Hayward, Andrew. Portal: Still Alive (Xbox 360). 1UP. 2008-10-27 [2008-10-27]. （原始内容存档于2012-07-18）.
Elliot, Shawn. Portal (PC). 1UP. 2007-10-10 [2008-08-03]. （原始内容存档于2011-08-19）.
2007 1UP Network Editorial Awards from 1UP.com. 1UP.com. [2008-02-18]. （原始内容存档于2009-02-26）.

abc.net.au

Game of the Year. Good Game Stories. 2007-12-12 [2008-01-31]. （原始内容存档于2011-01-28）.

alesiaglidewell.com

Glidewell, Alésia. On-Camera — Alésia Glidewell — Voice Over Artist. AlesiaGlidewell.com. [2014-04-27]. （原始内容存档于2011-09-03）.

archive.today

Elliot, Shawn. Beyond the Box: Orange Box Afterthoughts. 1UP. 2008-02-06 [2008-02-14]. （原始内容存档于2012-12-06）.
Hayward, Andrew. Portal: Still Alive (Xbox 360). 1UP. 2008-10-27 [2008-10-27]. （原始内容存档于2012-07-18）.

arstechnica.com

Kuchera, Ben. Portal is used to teach science as Valve gives game away for limited time. Ars Technica. 2011-09-16 [2011-09-16]. （原始内容存档于2012-01-26）.
Webster, Andrew. Portal 2 is official, first image inside. Ars Technica. 2010-03-05 [2010-03-05]. （原始内容存档于2010-03-07）.
Neuls, Johnathan. Valve to sell official Weighted Companion Cube plushies. Ars Technica. 2007-11-12 [2008-04-18]. （原始内容存档于2008-09-16）.
Kurchera, Ben. Kiss Me, Kill Me, Thrill Me: ups and downs in gaming 2007. Ars Technica. 2008-01-02 [2008-04-18]. （原始内容存档于2013-06-27）.

avclub.com

Dahlen, Chris; Mastrapa, Gus. A. V. Club Best Games of 2007. A. V. Club. 2007-12-24 [2014-04-27]. （原始内容存档于2008-12-29）.

bit-tech.net

Persson, Magnus. Weighted Companion Cube PC case mods.. Bit-tech.net. 2008-01-28 [2008-02-25]. （原始内容存档于2008-02-14）.

boingboing.net

offworld.boingboing.net

Boyer, Brandon. Chell's bells: Portal on the iPhone. Boing Boing Offworld. 2009-07-16 [2009-07-17]. （原始内容存档于2013-10-29）.

carina.org.uk

Lizzie. How to Make a Weighted Companion Cube Cake. 2008-01-01 [2008-02-07]. （原始内容存档于2011-08-13）.

computerandvideogames.com

Francis, Tom. PC Preview: Portal— PC Gamer Magazine. ComputerAndVideoGames.com. 2007-05-09 [2010-07-04]. （原始内容存档于2010-06-12）.
Zitron, Ed. Portal Maps Investigated. CVG. 2008-01-05 [2008-01-05]. （原始内容存档于2008-01-07）.

cymonsgames.com

Larson, Joseph. ASCIIportal | Cymonsgames. Joseph Larson. 2011-01-12 [2011-01-12]. （原始内容存档于2010-12-29）.

doi.org

Schiller, Nicholas. A Portal to Student Learning: What Instruction Librarians can Learn from Video Game Design. Reference Services Review. 2008, 36 (4): 351–365 [2009-06-25]. doi:10.1108/00907320810920333. （原始内容存档于2013-09-21）.

engadget.com

Hollister, Sean. Steam for Mac Opens a Portal to May 12, steps through. Engadget. 2010-04-29 [2010-05-11]. （原始内容存档于2010-05-03）.
Hollister, Sean. Steam for Mac Opens a Portal to May 12, steps through. Engadget. 2010-04-29 [2010-07-03]. （原始内容存档于2010-05-03）.

escapistmagazine.com

Croshaw, Ben. Zero Punctuation - Next Gen Buyer's Guide. The Escapist. 2013-06-05 [2014-01-08]. （原始内容存档于2020-01-21）.
The Orange Box - Zero Punctuation Video Gallery - The Escapist. The Escapist. [2014-10-06]. （原始内容存档于2014-10-06）.
Goldman, Tom. College Professor Requires Students to Study Portal. The Escapist. 2010-08-22 [2010-08-22]. （原始内容存档于2010-08-25）.

eurogamer.net

Bramwell, Tom. Portal: First Impressions. Eurogamer. 2007-05-15 [2010-07-04]. （原始内容存档于2007-10-28）.
Purchase, Robert. Portal free on Steam until 20th Sept. Eurogamer. 2011-09-16 [2011-09-16]. （原始内容存档于2011-09-23）.
Bradwell, Tom. Portal. Eurogamer. 2007-10-10 [2008-02-25]. （原始内容存档于2011-08-19）.
Reed, Kristen. The Orange Box. Eurogamer. 2007-10-10 [2008-02-14]. （原始内容存档于2007-10-26）.
Eurogamer's Top 50 Games of 2007. Eurogamer. [2008-01-01]. （原始内容存档于2011-08-19）.

forbes.com

Pinchefsky, Carol. Kim Swift, Creator of 'Portal,' Discusses Her Latest Game, 'Quantum Conundrum'. Forbes. 2012-06-26 [2012-06-26]. （原始内容存档于2012-06-29）.

g-cores.com

真没想到当年《传送门》的测试版是这样的. [2017-03-05]. （原始内容存档于2017-03-06）.

g4tv.com

Gaskill, Jake. Rumor: Valve To Make Portal 2 Announcement During GDC 2010. X-Play. 2010-03-03 [2010-03-03]. （原始内容存档于2018-01-08）.
Keil, Matt. G4 Review — The Orange Box. G4tv.com. [2007-10-19]. （原始内容存档于2012-11-03）.
Winners of X-Play Best of 2007 Awards Announced—BioShock is Video Game of the Year. G4TV. 2007-12-17 [2008-01-31]. （原始内容存档于2012-01-13）.
X-Play Best of 2007: Most Original Game. G4. 2007-12-18 [2008-02-25]. （原始内容存档于2018-05-09）.

gamasutra.com

Alessi, Jeremy. Games Demystified: Portal. Gamasutra. 2008-08-26 [2010-07-03]. （原始内容存档于2010-08-07）.
Graff, Kris. Valve's Writers And The Creative Process. Gamasutra. 2009-11-02 [2009-11-02]. （原始内容存档于2009-11-05）.
Caolli, Eric. Steam Launched For Mac, Portal Offered For Free. Gamasutra. 2010-05-12 [2010-05-13]. （原始内容存档于2010-05-13）.
Remo, Chris. Portal Racks Up 1.5M Free Downloads On PC, Mac. Gamasutra. 2010-05-19 [2010-05-19]. （原始内容存档于2010-05-21）.
Rose, Mike. Portal Sells 4 Million Excluding Steam Sale. Gamasutra. 2011-04-20 [2011-04-20]. （原始内容存档于2011-04-24）.
Alexander, Leigh. Gamasutra's Best Of 2007: Top 5 Poignant Game Moments. Gamasutra. 2007-12-19 [2007-12-19]. （原始内容存档于2007-12-21）.

gameinformer.com

Berghammer, Billy. GC 06:Valve's Doug Lombardi Talks Half-Life 2 Happenings. Game Informer. 2006-08-25 [2007-09-27]. （原始内容存档于2007-10-02）.
Reeves, Ben. Exploring Portal’s Creation And Its Ties To Half-Life 2. Game Informer. 2010-03-10 [2010-03-10]. （原始内容存档于2010-03-14）.
VanBurkleo, Meagan. Let There Be Cake. Game Informer. 2010-03-31 [2010-03-31]. （原始内容存档于2010-04-02）.
Turi, Tim. Chell Almost Married A Turret In Portal 2. Game Informer. 2012-09-01 [2012-09-06]. （原始内容存档于2012-09-05）.

gamepro.com

The GamePros. GamePro Editors' Choice *2007* (Pg. 2/5). GamePro. 2007-12-27 [2008-02-18]. （原始内容存档于2007-12-31）.

gamer.com.tw

gnn.gamer.com.tw

RU. 集結《傳送門》一、二代的《傳送門：同伴合集》今年將在 Switch 平台上市. 巴哈姆特電玩資訊站. 2022-02-10 [2022-02-13]. （原始内容存档于2022-02-16）.

gamerankings.com

Portal Reviews (PC). Game Rankings. [2009-07-05]. （原始内容存档于2008-12-21）.

gamesetwatch.com

Remo, Chris. Portal: Still Alive Explained. GameSetWatch. 2008-07-20 [2008-07-21]. （原始内容存档于2008-07-29）.
Johnson, Daniel. Column: 'Lingua Franca' – Portal and the Deconstruction of the Institution. GameSetWatch. 2009-06-01 [2009-06-01]. （原始内容存档于2009-06-05）.

gamesindustry.biz

Lee, James. Portal was offered to XBLA, but rejected. GamesIndustry.biz. 2008-04-28 [2008-06-14]. （原始内容存档于2008-05-17）.

gamespot.com

GameSpot's Best of 2007: Best Puzzle Game Genre Awards. GameSpot. [2008-02-18]. （原始内容存档于2008-12-05）.
GameSpot's Best of 2007: Best New Character(s) Special Achievement. GameSpot. [2008-02-18]. （原始内容存档于2011-08-19）.
GameSpot's Best of 2007: Best Original Game Mechanic Special Achievement. GameSpot. [2008-02-18]. （原始内容存档于2008-12-05）.

uk.gamespot.com

Portal BioShocks GDC Awards. GameSpot. [2008-02-21]. （原始内容存档于2012-01-04）.

gamespy.com

planethalflife.gamespy.com

Pratt. Pratt and Chief interview the Portal team at VALVe headquarters. Planet Half-Life. 2007-09-30 [2008-02-07]. （原始内容存档于2008-01-15）.
Phillips, John. Portal: Prelude. Gamespy. 2009-09-22 [2008-12-18]. （原始内容存档于2008-12-23）.

pc.gamespy.com

Accardo, Sal. Portal (PC). GameSpy. 2007-10-09 [2008-02-25]. （原始内容存档于2011-01-28）.

xbox360.gamespy.com

McGarvey, Sterline. The Orange Box (X360). GameSpy. 2007-10-10 [2008-02-14]. （原始内容存档于2008-01-19）.

goty.gamespy.com

GameSpy's Game of the Year 2007: Special Awards. GameSpy. [2014-04-27]. （原始内容存档于2013-10-29）.

gamesradar.com

GamesRadar US & UK. The 100 best games of all time. GamesRadar: 12. 2011-03-31 [2011-04-01]. ^{[永久失效連結]}

gametrailers.com

Geoff, Keighley. GameTrailers Episode 106. GameTrailers.com. 2008-03-01 [2008-03-25]. （原始内容存档于2008-03-05）.

giantbomb.com

Klepek, Patrick. Intro to GLaDOS 101: A Professor's Decision to Teach Portal. Giant Bomb. 2011-05-18 [2011-05-18]. （原始内容存档于2011-05-21）.

ign.com

bestof.ign.com

IGN Best of 2007: PC Best Puzzle Game. IGN.com. [2014-04-27]. （原始内容存档于2013-10-16）.
IGN Best of 2007: Xbox 360 – Best Puzzle Game. IGN.com. [2014-04-27]. （原始内容存档于2012-06-14）.
IGN Best of 2007: PC — Most Innovative Design. IGN.com. [2014-04-27]. （原始内容存档于2013-10-16）.
IGN Best of 2007: Xbox 360 – Best End Credit Song. IGN.com. [2014-04-27]. （原始内容存档于2012-02-26）.
IGN Best of 2007: Overall — Best Puzzle Game. IGN.com. [2014-04-27]. （原始内容存档于2013-11-12）.
IGN Best of 2007: Overall — Most Innovative Design. IGN.com. [2014-04-27]. （原始内容存档于2013-11-12）.

comics.ign.com

Esposito, Joey. Portal 2: Lab Rat – Part 1. IGN. 2011-04-08 [2011-04-11]. （原始内容存档于2011-04-10）.
Esposito, Joey. Read Portal 2: Lab Rat – Part 2. IGN. 2011-04-11 [2011-04-11]. （原始内容存档于2011-04-13）.

pc.ign.com

Adams, Dan. Portal Review. IGN. 2007-10-09 [2008-02-25]. （原始内容存档于2011-01-28）.
Adams, Dan. IGN: Portal Review. IGN. [2007-10-19]. （原始内容存档于2011-01-28）.

au.pc.ign.com

Craddock, David. Portal: Final Hands-on. IGN. 2007-10-03 [2010-07-04]. （原始内容存档于2011-04-15）.

xbox360.ign.com

IGN's Top 10 Xbox Live Arcade Games. IGN. 2009-05-07 [2009-08-07]. （原始内容存档于2012-04-13）.

xboxlive.ign.com

The Top 25 Xbox Live Arcade Games. IGN. 2010-09-16 [2010-09-16]. （原始内容存档于2010-09-18）.

video.ign.com

IGN's top 100 villains. IGN. [2010-05-18]. （原始内容存档于2010-05-18）.

jetlogs.org

Jetlogs. Companion Cube Plushie Sewing Pattern. Jetlogs. 2007-10-29 [2008-01-31]. （原始内容存档于2008-02-13）.
Jetlogs. Portal: Weighted Companion Cube Papercraft. Jetlogs. 2007-10-14 [2008-01-31]. （原始内容存档于2008-02-04）.

jonathancoulton.com

Coulton, Jonathan. Portal: The Skinny. Jonathan Coulton's blog. 2007-10-15 [2007-11-01]. （原始内容存档于2015-08-30）.

joystiq.com

Kiestmann, Ludwig. Individual Orange Box games hit retail April 9. Joystiq. 2008-03-06 [2008-03-06]. （原始内容存档于2008-03-06）.
Hinkle, David. Portal 2: Songs to Test By (Collectors Edition) out on Oct. 30. Joystiq. 2012-09-24 [2012-09-24]. （原始内容存档于2012-11-25）.
Kietzmann, Ludwig. Joystiq's Top 10 of 2007: Portal. Joystiq. 2008-01-01 [2008-02-18]. （原始内容存档于2012-10-27）.

kotaku.com

McWhertor, Michael. Portal Devs Reveal the GLaDOS That Never Was, Inspiration Behind Weighted Companion Cube. Kotaku. 2008-02-23 [2008-02-26]. （原始内容存档于2008-02-26）.
De Marco, Flynn. Official Plush Weighted Companion Cube Sells Out. Kotaku. 2007-12-15 [2008-02-21]. （原始内容存档于2008-03-04）.
Plunkett, Luke. It's Portal, Running In ASCII. Kotaku. 2009-07-08 [2009-07-16]. （原始内容存档于2009-07-12）.
Plunkett, Luke. Casting call reveals Portal 2 details. Kotaku. 2008-06-10 [2008-07-18]. （原始内容存档于2008-06-24）.
Plunkett, Luke. More details on Portal 2's bad guy. Kotaku. 2008-06-10 [2008-07-18]. （原始内容存档于2008-06-24）.
de Marco, Flynn. The Weighted Companion Cube Cake. Kotaku. 2007-10-21 [2008-01-31]. （原始内容存档于2008-02-02）.

learningwithportals.com

Learn With Portals. learningwithportals.com. Valve Corporation. 2011-09-15 [2014-04-27]. （原始内容存档于2011-10-06）.

mendeley.com

Schiller, Nicholas. A Portal to Student Learning: What Instruction Librarians can Learn from Video Game Design. Reference Services Review. 2008, 36 (4): 351–365 [2009-06-25]. doi:10.1108/00907320810920333. （原始内容存档于2013-09-21）.

metacritic.com

The Orange Box (PC). Metacritic. [2010-07-03]. （原始内容存档于2009-08-18）.
The Orange Box (Xbox 360). Metacritic. [2010-07-03]. （原始内容存档于2009-08-18）.
The Orange Box (PS3). Metacritic. [2010-07-03]. （原始内容存档于2009-08-18）.
Portal: Still Alive (xbox360: 2008). Metacritic. [2008-10-27]. （原始内容存档于2008-10-25）.
Portal (pc: 2007): Reviews. Metacritic. [2007-10-22]. （原始内容存档于2011-08-19）.

nuclearmonkeysoftware.com

Things are heating up!. Narbacular Drop official site. 2006-07-17 [2006-07-21]. （原始内容存档于2007-09-28）.

nvidia.com

blogs.nvidia.com

Paul, Jason. What’s in the Box? Portal – Valve’s Popular PC Title – Coming to SHIELD. Nvidia. 2014-03-25 [2014-05-27]. （原始内容存档于2014-06-05）.

nwsource.com

seattletimes.nwsource.com

Dudley, Breir. 'Portal' backstory a real Cinderella tale. Seattle Times. 2011-04-17 [2011-04-17]. （原始内容存档于2011-04-20）.

oxmonline.com

OXM's 2007 Game of the Year Awards. 官方Xbox杂志. 2008-03-17 [2008-03-21]. （原始内容存档于2014-10-10）.

pcworld.com

blogs.pcworld.com

Peckham, Matt. Portal: The Flash Version. PC World. 2007-10-11 [2008-05-05]. （原始内容存档于2011-01-28）.

penny-arcade.com

Penny Arcade! We're Right Returns. Penny Arcade. 2007-12-28 [2007-12-28]. （原始内容存档于2011-08-19）.

play.google.com

Portal. Google Apps. Google. 2014-05-12 [2014-05-13]. （原始内容存档于2014-05-13）.

pocketgamer.co.uk

Spenser, Spanner. Valve's Portal opened on the iPhone. Pocket Gamer. 2009-07-15 [2009-07-16]. （原始内容存档于2009-07-18）.

polygon.com

Tach, Dave. Why Nvidia created its own hardware platform and started developing games. Polygon. Vox Media. 2014-05-26 [2014-05-27]. （原始内容存档于2014-05-27）.

purenintendo.com

GameSpot's Best of 2007. Pure Nintendo. 2007 [2015-12-29]. （原始内容存档于2018-06-12）.

rockband.com

Baptiste, Sean. Valve Party at GDC + Special Preview of an Upcoming DLC Song. Harmonix. 2008-02-21 [2008-02-21]. （原始内容存档于2008-02-25）.
Baptiste, Sean. DLC April 1st! Huge success!. Rockband.com forums. [2008-03-31]. （原始内容存档于2008-04-02）.

rockpapershotgun.com

Walker, John. RPS Interview: Valve's Erik Wolpaw. Rock, Paper, Shotgun. 2007-10-31 [2007-10-31]. （原始内容存档于2007-11-01）.
Todd, Hamish. Untold Riches: An Analysis Of Portal’s Level Design. Rock, Paper, Shotgun. 2013-09-20 [2013-09-20]. （原始内容存档于2013-09-21）.

shacknews.com

Faylor, Chris. GDC 08: Portal Creators on Writing, Multiplayer, Government Interrogation Techniques. Shacknews. 2008-02-23 [2008-02-23]. （原始内容存档于2009-08-14）.
Faylor, Chris. 'Still Alive' Hits Rock Band X360 Tomorrow for Free, PlayStation 3 Edition Due Mid-April. Shacknews. 2008-03-31 [2008-03-31]. （原始内容存档于2008-04-02）.
Faylor, Chris. Portal: Still Alive Hits Xbox Live Arcade Next Wed; Promises Cake and Companionship. Shacknews. 2008-10-16 [2008-10-16]. （原始内容存档于2008-10-17）.
Faylor, Chris. Portal: Still Alive Coming Exclusively to Xbox 360. Shacknews. 2008-07-14 [2008-07-14]. （原始内容存档于2008-07-15）.
Breckon, Nick. Flash Version of Portal Converted to Actual Map Pack. Shacknews. 2008-05-05 [2008-05-05]. （原始内容存档于2011-01-28）.
Faylor, Chris. Portal Mystery Deepens with Second Update. Shacknews. 2010-03-03 [2010-03-03]. （原始内容存档于2010-03-05）.
Leahy, Brian. Portal Patch Adds Morse Code, Achievement – Portal 2 Speculation Begins. Shacknews. 2010-03-01 [2010-03-02]. （原始内容存档于2010-03-03）.
Shack Staff. Game of the Year Awards 2007. Shacknews. 2008-01-04 [2008-01-31]. （原始内容存档于2009-02-04）.

si.edu

americanart.si.edu

The Art of Video Games Exhibition Checklist (PDF). Smithsonian American Art Museum. Smithsonian Institution: 12. 2012-04-05 [2015-05-19]. （原始内容 (PDF)存档于2012-05-12）.

stabyourself.net

Guégan, Maurice. Mari0, a Mashup of Portal and Super Mario Bros. http://stabyourself.net/. 2013-10-25 [2013-10-25]. （原始内容存档于2013-10-26）.

steampowered.com

store.steampowered.com

Pre-Purchase The Orange Box, Play Team Fortress 2 Next Week. Steam. Valve. 2007-09-06 [2010-08-11]. （原始内容存档于2010-04-16）.
Portal. Steam. Valve Corporation. [2010-08-11]. （原始内容存档于2010-08-10）.
Introducing the Steam Music Player. Steam. Valve Corporation. [2014-10-03]. （原始内容存档于2014-10-29）.
Everyday Shooter Makes PC Debut on Steam Today. Valve. 2008-05-08 [2008-05-15]. （原始内容存档于2008-09-21）. In other Steam news, Portal: First Slice – the official demo for the title named Game of the Year by over 30 publications – is now available for free to all gamers via Steam.
Valve and NVIDIA Offer Portal: First Slice Free to GeForce Users. Steam. Valve. 2008-01-09 [2010-08-11]. （原始内容存档于2010-07-16）.

steampowered.com

Steam - Portal. Steam. [2010-07-03]. （原始内容存档于2013-06-27）.
Steam Updates: Friday, November 9, 2007. Valve. 2007-11-09 [2007-11-09]. （原始内容存档于2007-11-11）.

tegrazone.com

Paul, Jason. The Greatest PC Games of All-Time – Half-Life 2 and Portal – Now Available on SHIELD. NVIDIA Corporation. TegraZone. 2014-05-12 [2014-10-11]. （原始内容存档于2014-10-16）.

thinkingwithportals.com

Thinking With Portals. ThinkingWithPortals.com. [2008-06-21]. （原始内容存档于2015-08-30）.

time.com

techland.time.com

All-TIME 100 Video Games. Time (Time Inc.). 2012-11-15 [2012-11-15]. （原始内容存档于2012-11-15）.

usatoday.com

content.usatoday.com

Toppo, Greg. Valve teams with White House in digital learning program. USA Today. 2011-09-19 [2011-09-20]. （原始内容存档于2011-09-21）.

valvesoftware.com

store.valvesoftware.com

The Orange Box Original Soundtrack. Valve Corporation. [2008-01-31]. （原始内容存档于2007-12-25）.

web.archive.org

Pre-Purchase The Orange Box, Play Team Fortress 2 Next Week. Steam. Valve. 2007-09-06 [2010-08-11]. （原始内容存档于2010-04-16）.
Kiestmann, Ludwig. Individual Orange Box games hit retail April 9. Joystiq. 2008-03-06 [2008-03-06]. （原始内容存档于2008-03-06）.
Portal. Steam. Valve Corporation. [2010-08-11]. （原始内容存档于2010-08-10）.
Paul, Jason. The Greatest PC Games of All-Time – Half-Life 2 and Portal – Now Available on SHIELD. NVIDIA Corporation. TegraZone. 2014-05-12 [2014-10-11]. （原始内容存档于2014-10-16）.
Portal. Google Apps. Google. 2014-05-12 [2014-05-13]. （原始内容存档于2014-05-13）.
The Orange Box (PC). Metacritic. [2010-07-03]. （原始内容存档于2009-08-18）.
The Orange Box (Xbox 360). Metacritic. [2010-07-03]. （原始内容存档于2009-08-18）.
The Orange Box (PS3). Metacritic. [2010-07-03]. （原始内容存档于2009-08-18）.
Hollister, Sean. Steam for Mac Opens a Portal to May 12, steps through. Engadget. 2010-04-29 [2010-05-11]. （原始内容存档于2010-05-03）.
Hollister, Sean. Steam for Mac Opens a Portal to May 12, steps through. Engadget. 2010-04-29 [2010-07-03]. （原始内容存档于2010-05-03）.
RU. 集結《傳送門》一、二代的《傳送門：同伴合集》今年將在 Switch 平台上市. 巴哈姆特電玩資訊站. 2022-02-10 [2022-02-13]. （原始内容存档于2022-02-16）.
Alessi, Jeremy. Games Demystified: Portal. Gamasutra. 2008-08-26 [2010-07-03]. （原始内容存档于2010-08-07）.
Craddock, David. Portal: Final Hands-on. IGN. 2007-10-03 [2010-07-04]. （原始内容存档于2011-04-15）.
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en.wikipedia.org

《传送门》、《寂静岭》^[106]、《精神世界（英语：Psychonauts）》^[107]等是该节目为数不多的持正面评价的游戏。

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