Portal (series) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Portal (series)" in English language version.

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66web.archive.org

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9ign.com

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1up.com

Elliot, Shawn (February 6, 2008). "Beyond the Box: Orange Box Afterthoughts". 1UP. Archived from the original on December 6, 2012. Retrieved February 14, 2008.

amazon.com

Keighley, Geoff (2011). The Final Hours of Portal 2. ASIN B004XMZZKQ. Also available as iPad or Steam application.

archive.today

Elliot, Shawn (February 6, 2008). "Beyond the Box: Orange Box Afterthoughts". 1UP. Archived from the original on December 6, 2012. Retrieved February 14, 2008.
Gaskill, Jake (June 18, 2010). "E3 2010: Portal 2 Preview". G4TV. Archived from the original on July 7, 2012. Retrieved June 19, 2010.
Mawson, Jarrod (April 7, 2001). "Portal 2 'Rat Man' comic revealed". PALGN. Archived from the original on January 15, 2013. Retrieved August 6, 2011.

arstechnica.com

Kuchera, Ben (September 16, 2011). "Portal is used to teach science as Valve gives game away for limited time". Ars Technica. Archived from the original on June 4, 2012. Retrieved June 28, 2012.

bit-tech.net

Lane, Rick (June 29, 2021). "Portal Reloaded is the game Portal 2 should have been". Bit-Tech. Retrieved October 25, 2022.

cinemablend.com

"MineCraft Xbox 360 Skin Pack 3 Adds Half-Life 2, Portal 2 Cast". CinemaBlend. October 15, 2012. Retrieved March 4, 2022.

cnet.com

Hollister, Sean (March 16, 2016). "Valve's 'Lab' and desktop theater mode could be the perfect introduction to virtual reality (hands-on)". CNet. Archived from the original on March 17, 2016. Retrieved March 17, 2016.

develop-online.net

Crossley, Rob (September 16, 2011). "Portal goes free in Valve education push". Develop. Archived from the original on July 16, 2012. Retrieved June 28, 2012.

doi.org

Schiller, Nicholas (2008). "A Portal to Student Learning: What Instruction Librarians can Learn from Video Game Design". Reference Services Review. 36 (4): 351–365. CiteSeerX 10.1.1.623.999. doi:10.1108/00907320810920333. Archived from the original on September 21, 2013. Retrieved June 25, 2009.

engadget.com

Portal and Half-Life Creator Gabe Newell teams up with Filmmaker J. J. Abrams to plan and produce a Game and Film Collaboration

escapistmagazine.com

Goldman, Tom (April 7, 2011). "Official Portal 2 Comic Reveals the Truth About Cake". The Escapist. Archived from the original on April 11, 2011. Retrieved August 6, 2011.
Goldman, Tom (August 22, 2010). "College Professor Requires Students to Study Portal". The Escapist. Archived from the original on August 25, 2010. Retrieved August 22, 2010.

eurogamer.net

Welch, Oli (April 25, 2011). "Portal 2: "Let's make Caddyshack"". Eurogamer. Archived from the original on April 28, 2011. Retrieved April 25, 2011.
Dutton, Fred (September 30, 2011). "Portal 2 DLC release date". Eurogamer. Archived from the original on October 2, 2011. Retrieved September 30, 2011.
Phillips, Tom (February 9, 2022). "Portal and Portal 2 coming to Nintendo Switch". Eurogamer. Retrieved February 9, 2022.
Phillips, Tom (May 11, 2015). "Lego Dimensions' Portal 2 and Doctor Who expansions confirmed - Eurogamer.net". Eurogamer. Gamer Network. Archived from the original on May 14, 2015. Retrieved May 11, 2015.
Philips, Tom (November 18, 2016). "It took Lego Dimensions players over a year to find the secret Portal Easter egg". Eurogamer. Archived from the original on November 19, 2016. Retrieved November 18, 2016.

evilgeniusgame.com

"Aperture Science Meets Evil Genius │ FREE New DLC". Evil Genius. Retrieved January 24, 2022.

fastcompany.com

Ohannessian, Kevin (April 27, 2011). "Portal 2's Creators On Crafting Games Through Experiential Stories". Fast Company. Archived from the original on April 30, 2011. Retrieved April 27, 2011.

g4tv.com

e3.g4tv.com

Gaskill, Jake (June 18, 2010). "E3 2010: Portal 2 Preview". G4TV. Archived from the original on July 7, 2012. Retrieved June 19, 2010.

gamasutra.com

Remo, Chris (September 20, 2010). "Synthesizing Portal 2". Gamasutra. Archived from the original on January 19, 2012. Retrieved September 20, 2010.
Alexander, Leigh (May 6, 2011). "Valve's Wolpaw Offers Behind-The-Scenes Peek Into Portal 2". Gamasutra. Archived from the original on May 8, 2011. Retrieved May 6, 2011.
Alexander, Leigh (June 20, 2012). "Valve helps educators Teach With Portals". Gamasutra. Archived from the original on June 22, 2012. Retrieved June 20, 2012.
Caolli, Eric (May 12, 2010). "Steam Launched For Mac, Portal Offered For Free". Gamasutra. Archived from the original on May 13, 2010. Retrieved May 13, 2010.
Remo, Chris (May 19, 2010). "Portal Racks Up 1.5M Free Downloads On PC, Mac". Gamasutra. Archived from the original on May 21, 2010. Retrieved May 19, 2010.
Rose, Mike (July 11, 2011). "Comic Book Based On Valve Strips Coming This November". Gamasutra. Archived from the original on July 14, 2011. Retrieved July 11, 2011.
Remo, Chris (June 18, 2010). "Portal 2 's Wolpaw: 'I Do Not Want To Resurrect A Three-Year-Old Meme'". www.gamasutra.com. Retrieved January 10, 2022.
"NECA/WizKids Announce New Portal 2 Sentry Turret Collectible Figures" (Press release). WizKids. July 5, 2012. Archived from the original on December 17, 2014. Retrieved July 9, 2012.

gameinformer.com

Hilliard, Kyle (June 7, 2013). "The Best Video Game Surprise Songs". Game Informer. Archived from the original on June 9, 2013. Retrieved June 7, 2013.
Berghammer, Billy (August 25, 2006). "GC 06:Valve's Doug Lombardi Talks Half-Life 2 Happenings". Game Informer. Archived from the original on October 2, 2007. Retrieved September 27, 2007.
Reeves, Ben (March 10, 2010). "Exploring Portal's Creation And Its Ties To Half-Life 2". Game Informer. Archived from the original on March 14, 2010. Retrieved March 10, 2010.
Ryckert, Dan (March 8, 2010). "From Narbacular Drop To Portal". Game Informer. Archived from the original on March 10, 2010. Retrieved March 8, 2010.
Helgeson, Matt (May 10, 2012). "Portal 2's Perpetual Testing Initiative Off To A Good Start". Game Informer. Archived from the original on May 12, 2012. Retrieved May 11, 2012.

gamesetwatch.com

Remo, Chris (July 20, 2008). "Portal: Still Alive Explained". GameSetWatch. Archived from the original on July 29, 2008. Retrieved July 21, 2008.
Johnson, Daniel (June 1, 2009). "Column: 'Lingua Franca' – Portal and the Deconstruction of the Institution". GameSetWatch. Archived from the original on June 5, 2009. Retrieved June 1, 2009.

gamespot.com

Keighley, Geoff (2004). "The Final Hours of Half-Life 2". GameSpot. Archived from the original on February 1, 2012. Retrieved January 26, 2012.
"Rocket League Introduces Free Portal DLC This Week". GameSpot. Retrieved March 4, 2022.

ghostarchive.org

Snider, Mike (April 25, 2011). "GameTrailers TV's Geoff Keighley gets interactive with new 'Portal 2' iPad app". USA Today. Archived from the original on October 23, 2021. Retrieved January 26, 2012.
Jorgenson, Tom (May 24, 2021). "Portal Movie Still Alive, in Development at Warner Bros., Says Producer JJ Abrams". IGN. Archived from the original on October 23, 2021. Retrieved May 24, 2021.
Tarason, Dominic (April 13, 2018). "Super Bomberman R returns a classic to PC with portals". Rock Paper Shotgun. Archived from the original on October 23, 2021. Retrieved April 13, 2018.
Egan, Toussaint (August 14, 2021). "Free Guy's IP-bonanza ending was inspired by the entire crew". Polygon. Archived from the original on October 23, 2021. Retrieved August 14, 2021.

giantbomb.com

Klepek, Patrick (May 18, 2011). "Intro to GLaDOS 101: A Professor's Decision to Teach Portal". Giant Bomb. Archived from the original on May 21, 2011. Retrieved May 18, 2011.

ibtimes.co.uk

Skipper, Ben (January 15, 2016). "Cloverfield sequel director Dan Trachtenberg caught Hollywood's eye with this Portal fan film". Archived from the original on September 20, 2016. Retrieved September 19, 2016.

ign.com

Strom, Steven (March 12, 2016). "J.J. ABRAMS: PORTAL, HALF-LIFE MOVIES STILL HAPPENING". IGN. Archived from the original on March 12, 2016. Retrieved March 12, 2016.
Jorgenson, Tom (May 24, 2021). "Portal Movie Still Alive, in Development at Warner Bros., Says Producer JJ Abrams". IGN. Archived from the original on October 23, 2021. Retrieved May 24, 2021.
Ogilvie, Trisian (June 17, 2015). "E3 2015: LEGO DIMENSIONS BUILDS A PORTAL GAME FOR EVERYONE". IGN. Archived from the original on June 21, 2015. Retrieved June 29, 2015.
Stewart, Sam (May 19, 2017). "Valve Reveals Companion Cube Cosmetic For Dota 2 Hero". IGN. Archived from the original on May 19, 2017. Retrieved May 20, 2017.
"Escape Simulator - Official Portal Escape Chamber DLC Trailer". IGN. August 10, 2023. Retrieved September 11, 2023.

comics.ign.com

Esposito, Joey (April 8, 2011). "Portal 2: Lab Rat – Part 1". IGN. Archived from the original on April 10, 2011. Retrieved April 11, 2011.
Esposito, Joey (April 11, 2011). "Read Portal 2: Lab Rat – Part 2". IGN. Archived from the original on April 13, 2011. Retrieved April 11, 2011.

pc.ign.com

Griliopoulos, Dan (March 28, 2011). "Portal 2: Test Subjects". IGN. Archived from the original on August 29, 2011. Retrieved March 28, 2011.

uk.comics.ign.com

Esposito, Joey (April 6, 2011). "Expanding the World of Portal 2". IGN. Archived from the original on April 29, 2011. Retrieved April 6, 2011.

joystiq.com

Kiestmann, Ludwig (March 6, 2008). "Individual Orange Box games hit retail April 9". Joystiq. Archived from the original on March 6, 2008. Retrieved March 6, 2008.

kotaku.com

Tolito, Stephen (April 21, 2011). "Portal 2 Wasn't Going to Include Portals, According To New iPad App". Kotaku. Archived from the original on November 6, 2010. Retrieved May 6, 2011.
Tolito, Stephan (October 18, 2011). "Valve Tinkering With an Excellent Portal 2 Feature That Talks Back". Kotaku. Archived from the original on October 20, 2011. Retrieved October 19, 2011.
De Marco, Flynn (December 15, 2007). "Official Plush Weighted Companion Cube Sells Out". Kotaku. Archived from the original on March 4, 2008. Retrieved February 21, 2008.
Mari0 Puts a Portal Gun in Super Mario Bros "Mari0 is What Happens when Mario Gets a Portal Gun". August 29, 2011. Archived from the original on March 3, 2016. Retrieved February 29, 2016. - Kotaku

mendeley.com

Schiller, Nicholas (2008). "A Portal to Student Learning: What Instruction Librarians can Learn from Video Game Design". Reference Services Review. 36 (4): 351–365. CiteSeerX 10.1.1.623.999. doi:10.1108/00907320810920333. Archived from the original on September 21, 2013. Retrieved June 25, 2009.

metacritic.com

"Portal (pc: 2007): Reviews". Metacritic. Archived from the original on August 28, 2011. Retrieved October 22, 2007.
"Portal 2 for PC Reviews, Ratings, Credits, and More". Metacritic. Archived from the original on March 9, 2012. Retrieved April 23, 2011.

minecraft.net

"Skin Pack 3 - Classic". Minecraft. Retrieved March 4, 2022.

nuclearmonkeysoftware.com

"Things are heating up!". Narbacular Drop official site. July 17, 2006. Archived from the original on September 28, 2007. Retrieved July 21, 2006.

nwsource.com

seattletimes.nwsource.com

Dudley, Breir (April 17, 2011). "'Portal' backstory a real Cinderella tale". Seattle Times. Archived from the original on April 20, 2011. Retrieved April 17, 2011.

palgn.com.au

Mawson, Jarrod (April 7, 2001). "Portal 2 'Rat Man' comic revealed". PALGN. Archived from the original on January 15, 2013. Retrieved August 6, 2011.

pcgamer.com

Lane, Rick (April 18, 2022). "Portal writer urges Valve to 'start Portal 3'". PC Gamer. Retrieved October 31, 2022.
Chalk, Andy (September 7, 2022). "The voice of GlaDOS says she dreams about murdering people". PC Gamer. Retrieved October 31, 2022.
Hill, Owen (May 18, 2011). "Portal 2 – The Final Hours now on Steam". PC Gamer. Archived from the original on March 28, 2012. Retrieved January 26, 2012.
Donneley, Joe (December 6, 2017). "A new Portal game will launch this month—Bridge Constructor Portal". PC Gamer. Archived from the original on December 6, 2017. Retrieved December 6, 2017.
Livingston, Christopher (March 1, 2022). "Weaponize toilets in Valve's hilarious short game Aperture Desk Job". PC Gamer. Retrieved March 1, 2022.
Vandell, Perry (July 10, 2013). "Psychonauts, Spelunky, and Portal 2 characters join the cast of Runner 2". PC Gamer. Archived from the original on September 12, 2015. Retrieved August 26, 2015.
Wilde, Tyler (June 23, 2011). "Newell: Portal 2 has hit three million sales". PC Gamer. Archived from the original on December 25, 2011. Retrieved June 28, 2012.

pcworld.com

Peckham, Matt (June 15, 2010). "Valve Apologizes For Sony-Bashing, Announces Portal 2 for PS3". PC World. Archived from the original on June 19, 2010. Retrieved June 15, 2010.

polygon.com

Carpenter, Nicole (February 9, 2022). "Portal and Portal 2 coming to Nintendo Switch". Polygon. Retrieved February 9, 2022.
Sarkar, Samit (March 5, 2014). "How Valve and Cryptozoic came together for a Portal board game". Polygon. Archived from the original on March 5, 2014. Retrieved March 5, 2014.
Egan, Toussaint (August 14, 2021). "Free Guy's IP-bonanza ending was inspired by the entire crew". Polygon. Archived from the original on October 23, 2021. Retrieved August 14, 2021.

portalprelude.com

"Portal: Prelude". portalprelude. Archived from the original on July 18, 2023.

psu.edu

citeseerx.ist.psu.edu

Schiller, Nicholas (2008). "A Portal to Student Learning: What Instruction Librarians can Learn from Video Game Design". Reference Services Review. 36 (4): 351–365. CiteSeerX 10.1.1.623.999. doi:10.1108/00907320810920333. Archived from the original on September 21, 2013. Retrieved June 25, 2009.

roadtovr.com

Hayden, Scott (June 28, 2019). "Valve's 'Aperture Hand Lab' Index Demo Updated to Support Oculus Touch". roadtovr.com. Retrieved October 25, 2022.

rockpapershotgun.com

Tarason, Dominic (April 13, 2018). "Super Bomberman R returns a classic to PC with portals". Rock Paper Shotgun. Archived from the original on October 23, 2021. Retrieved April 13, 2018.

shacknews.com

Leahy, Brian (March 8, 2010). "Valve Hires DigiPen Team; Seemingly for Portal 2". Shacknews. Archived from the original on May 18, 2011. Retrieved March 8, 2010.
Faylor, Chris (October 16, 2008). "Portal: Still Alive Hits Xbox Live Arcade Next Wed; Promises Cake and Companionship". Shacknews. Archived from the original on October 17, 2008. Retrieved October 16, 2008.
Perez, Daniel (March 7, 2016). "Valve's 'The Lab' is a compilation VR experience set in Portal's universe releasing this Spring". Shacknews. Archived from the original on March 8, 2016. Retrieved March 7, 2016.

space.com

Pearlmanpublished, Robert Z. (July 23, 2012). "'Portal 2' Space: Video Game Robot Launched Into 'Actual' Space". Space.com. Retrieved February 28, 2024.

steampowered.com

"Steam Updates: Friday, November 9, 2007". Valve. November 9, 2007. Archived from the original on November 11, 2007. Retrieved November 9, 2007.

store.steampowered.com

"Portal Stories: VR on Steam". store.steampowered.com. Retrieved November 15, 2022.

telegraph.co.uk

Brown, David (March 4, 2011). "Portal 2 developer interview: Chet Falisek and Erik Wolpaw". The Daily Telegraph. Archived from the original on March 9, 2011. Retrieved March 4, 2011.

thegamer.com

"There's A Reference To Portal's GLaDOS in Cyberpunk 2077". TheGamer. December 14, 2020. Retrieved January 24, 2022.

theguardian.com

Stewart, Keith (June 18, 2010). "E3 2010: Portal 2 preview". The Guardian. Archived from the original on December 3, 2013. Retrieved June 21, 2010.

theverge.com

Hollister, Sean (February 25, 2022). "Valve made a bite-sized new Portal game for the Steam Deck". The Verge. Retrieved February 25, 2022.
"Portal is turning into a pinball game". May 5, 2015. Archived from the original on August 19, 2017.
Peters, Jay (January 12, 2022). "Geico made the Portal ad we never asked for". The Verge. Retrieved January 12, 2022.

thinkwithportals.com

"Portal 2: Lab Rat". Archived from the original on April 12, 2011. Retrieved August 6, 2001.

thunderboltgames.com

"Defense Grid: You Monster". February 2, 2015. Archived from the original on March 4, 2016.

torontosun.com

Steve Tilley (January 4, 2013). "Guillermo del Toro says 'Pacific Rim' A.I. an homage to 'Portal's GlaDOS". Toronto Sun. Retrieved December 18, 2023.

usatoday.com

content.usatoday.com

Snider, Mike (April 25, 2011). "GameTrailers TV's Geoff Keighley gets interactive with new 'Portal 2' iPad app". USA Today. Archived from the original on October 23, 2021. Retrieved January 26, 2012.

venturebeat.com

Takahashi, Dean (April 21, 2011). "Game journalist may cash in on the making of Portal 2". Venture Beat. Archived from the original on December 23, 2011. Retrieved January 26, 2012.

vg247.com

Nunneley, Stephany (December 6, 2017). "Bridge Constructor Portal is exactly what it sounds like". VG247. Archived from the original on December 6, 2017. Retrieved December 6, 2017.

videogameschronicle.com

Middler, Jordan (September 20, 2022). "Nvidia is bringing ray-tracing to Portal with an RTX version". Video Games Chronicle. Retrieved September 20, 2022.

web.archive.org

Hilliard, Kyle (June 7, 2013). "The Best Video Game Surprise Songs". Game Informer. Archived from the original on June 9, 2013. Retrieved June 7, 2013.
"Things are heating up!". Narbacular Drop official site. July 17, 2006. Archived from the original on September 28, 2007. Retrieved July 21, 2006.
Berghammer, Billy (August 25, 2006). "GC 06:Valve's Doug Lombardi Talks Half-Life 2 Happenings". Game Informer. Archived from the original on October 2, 2007. Retrieved September 27, 2007.
Dudley, Breir (April 17, 2011). "'Portal' backstory a real Cinderella tale". Seattle Times. Archived from the original on April 20, 2011. Retrieved April 17, 2011.
Reeves, Ben (March 10, 2010). "Exploring Portal's Creation And Its Ties To Half-Life 2". Game Informer. Archived from the original on March 14, 2010. Retrieved March 10, 2010.
"Portal (pc: 2007): Reviews". Metacritic. Archived from the original on August 28, 2011. Retrieved October 22, 2007.
Remo, Chris (September 20, 2010). "Synthesizing Portal 2". Gamasutra. Archived from the original on January 19, 2012. Retrieved September 20, 2010.
Alexander, Leigh (May 6, 2011). "Valve's Wolpaw Offers Behind-The-Scenes Peek Into Portal 2". Gamasutra. Archived from the original on May 8, 2011. Retrieved May 6, 2011.
Tolito, Stephen (April 21, 2011). "Portal 2 Wasn't Going to Include Portals, According To New iPad App". Kotaku. Archived from the original on November 6, 2010. Retrieved May 6, 2011.
Kao, Ryan (September 4, 2010). "Portal 2: A Look at the Hotly Anticipated Videogame". Wall Street Journal. Archived from the original on September 6, 2010. Retrieved September 4, 2010.
Leahy, Brian (March 8, 2010). "Valve Hires DigiPen Team; Seemingly for Portal 2". Shacknews. Archived from the original on May 18, 2011. Retrieved March 8, 2010.
Ryckert, Dan (March 8, 2010). "From Narbacular Drop To Portal". Game Informer. Archived from the original on March 10, 2010. Retrieved March 8, 2010.
Stewart, Keith (June 18, 2010). "E3 2010: Portal 2 preview". The Guardian. Archived from the original on December 3, 2013. Retrieved June 21, 2010.
Peckham, Matt (June 15, 2010). "Valve Apologizes For Sony-Bashing, Announces Portal 2 for PS3". PC World. Archived from the original on June 19, 2010. Retrieved June 15, 2010.
Welch, Oli (April 25, 2011). "Portal 2: "Let's make Caddyshack"". Eurogamer. Archived from the original on April 28, 2011. Retrieved April 25, 2011.
"Portal 2 for PC Reviews, Ratings, Credits, and More". Metacritic. Archived from the original on March 9, 2012. Retrieved April 23, 2011.
Ohannessian, Kevin (April 27, 2011). "Portal 2's Creators On Crafting Games Through Experiential Stories". Fast Company. Archived from the original on April 30, 2011. Retrieved April 27, 2011.
Dutton, Fred (September 30, 2011). "Portal 2 DLC release date". Eurogamer. Archived from the original on October 2, 2011. Retrieved September 30, 2011.
Helgeson, Matt (May 10, 2012). "Portal 2's Perpetual Testing Initiative Off To A Good Start". Game Informer. Archived from the original on May 12, 2012. Retrieved May 11, 2012.
Alexander, Leigh (June 20, 2012). "Valve helps educators Teach With Portals". Gamasutra. Archived from the original on June 22, 2012. Retrieved June 20, 2012.
Keighley, Geoff (November 21, 2019). "The Final Hours of Half-Life: Alyx - Behind Closed Doors at Valve Interview". Archived from the original on November 21, 2019. Retrieved November 21, 2019 – via YouTube.
Kiestmann, Ludwig (March 6, 2008). "Individual Orange Box games hit retail April 9". Joystiq. Archived from the original on March 6, 2008. Retrieved March 6, 2008.
Caolli, Eric (May 12, 2010). "Steam Launched For Mac, Portal Offered For Free". Gamasutra. Archived from the original on May 13, 2010. Retrieved May 13, 2010.
Remo, Chris (May 19, 2010). "Portal Racks Up 1.5M Free Downloads On PC, Mac". Gamasutra. Archived from the original on May 21, 2010. Retrieved May 19, 2010.
Faylor, Chris (October 16, 2008). "Portal: Still Alive Hits Xbox Live Arcade Next Wed; Promises Cake and Companionship". Shacknews. Archived from the original on October 17, 2008. Retrieved October 16, 2008.
Remo, Chris (July 20, 2008). "Portal: Still Alive Explained". GameSetWatch. Archived from the original on July 29, 2008. Retrieved July 21, 2008.
Takahashi, Dean (April 21, 2011). "Game journalist may cash in on the making of Portal 2". Venture Beat. Archived from the original on December 23, 2011. Retrieved January 26, 2012.
Keighley, Geoff (2004). "The Final Hours of Half-Life 2". GameSpot. Archived from the original on February 1, 2012. Retrieved January 26, 2012.
Hill, Owen (May 18, 2011). "Portal 2 – The Final Hours now on Steam". PC Gamer. Archived from the original on March 28, 2012. Retrieved January 26, 2012.
Tolito, Stephan (October 18, 2011). "Valve Tinkering With an Excellent Portal 2 Feature That Talks Back". Kotaku. Archived from the original on October 20, 2011. Retrieved October 19, 2011.
Brown, David (March 4, 2011). "Portal 2 developer interview: Chet Falisek and Erik Wolpaw". The Daily Telegraph. Archived from the original on March 9, 2011. Retrieved March 4, 2011.
Griliopoulos, Dan (March 28, 2011). "Portal 2: Test Subjects". IGN. Archived from the original on August 29, 2011. Retrieved March 28, 2011.
Goldman, Tom (April 7, 2011). "Official Portal 2 Comic Reveals the Truth About Cake". The Escapist. Archived from the original on April 11, 2011. Retrieved August 6, 2011.
Esposito, Joey (April 6, 2011). "Expanding the World of Portal 2". IGN. Archived from the original on April 29, 2011. Retrieved April 6, 2011.
Esposito, Joey (April 8, 2011). "Portal 2: Lab Rat – Part 1". IGN. Archived from the original on April 10, 2011. Retrieved April 11, 2011.
Esposito, Joey (April 11, 2011). "Read Portal 2: Lab Rat – Part 2". IGN. Archived from the original on April 13, 2011. Retrieved April 11, 2011.
Rose, Mike (July 11, 2011). "Comic Book Based On Valve Strips Coming This November". Gamasutra. Archived from the original on July 14, 2011. Retrieved July 11, 2011.
"Portal 2: Lab Rat". Archived from the original on April 12, 2011. Retrieved August 6, 2001.
Sarkar, Samit (March 5, 2014). "How Valve and Cryptozoic came together for a Portal board game". Polygon. Archived from the original on March 5, 2014. Retrieved March 5, 2014.
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