For detailed information about this series, see:
Portal Unofficial Wiki Portal is a series of first-person puzzle-platform video games created by Valve Corporation and centered around the use of teleporting portals to solve puzzles. Since it features some of the same gameplay elements and is set in the same universe as the Half-Life series, it's consideed a spin-off of it. The element of portals, however, is based on an independent game titled .
The released games are:
Portal (October 9, 2007), PC. Originally released within The Orange Box, it was released as a stand-alone game in 2008 for PC, in 2010 for Mac OS X and in 2013 for Linux.
Portal: Still Alive (October 22, 2008), Xbox Live Arcade. It includes the whole original game, plus 14 new test chambers taken from , an unofficial version of the game.
Portal: The Flash Version Portal 2 (April 19, 2011), PC.
Additionally, a series of graphic novels were made available in the official
Portal 2 website. These include:
Portal 2: Lab Rat, released in April 2011, serving as a bridge between Portal and Portal 2.
Turret Lullaby, released in September 2011, depicting the testing days of the Consumer Sentry Turret.
Randolph the Red-Nosed Turret, released in December 2011, a parody of the 1939 booklet, Rudolph the Red-Nosed Reindeer.
Links to other series
Direction Series Date Description
Half-Life October 09, 2007 The Portal series is set in the same universe as the Half-Life series. 1
Narbacular Drop October 09, 2007 The gameplay of the Portal series is based on Narbacular Drop. 3
The Orange Box October 09, 2007 The Orange Box includes Portal. 2
X-Men May 01, 2009 In the game X-Men Origins: Wolverine there's a cake based on the one from Portal. 3
Wolverine May 01, 2009 In the game X-Men Origins: Wolverine there's a cake based on the one from Portal. 3
League of Legends October 27, 2009 GlaDos appears as a guest announcer in League of Legends. 3
Potato Sack April 01, 2011 The Potato Sack boundle was created as a promotion to Portal 2. 3
Team Fortress April 15, 2011 Team Fortress 2 features unlockable items based on the Portal series and Portal 2 features unlockable hats from Team Fortress 2. 2
Tag: The Power of Paint April 19, 2011 Portal 2 features gameplay elements from Tag: The Power of Paint. 3
1... 2... 3... KICK IT! April 19, 2011 Portal 2 features a flag item with the 1... 2... 3... KICK IT! logo on it. 2
AaAaAA!!! April 19, 2011 Portal 2 features a flag item with the AaaaaAAaaaAAAaaAAAAaAAAAA!!! – A Reckless Disregard for Gravity logo on it. 2
Amnesia (Frictional Games) April 19, 2011 Portal 2 features a flag item with the Amnesia: The Dark Descent logo on it. 2
Audiosurf April 19, 2011 Portal 2 features a flag item with the Audiosurf logo on it. 2
Cogs April 19, 2011 Portal 2 features a flag item with the Cogs logo on it. 2
Killing Floor April 12, 2011 Aperture Science is a based map added during the April 12th update following the Potato Fools Day event and later in Portal 2 features a flag item with the Killing Floor logo on it. 1
RUSH (Two Tribes) April 19, 2011 Portal 2 features a flag item with the RUSH logo on it. 2
Super Meat Boy April 19, 2011 Portal 2 features a flag item with the face of Meat Boy on it. 2
The Ball (Tripwire Interactive) April 19, 2011 Portal 2 features a flag item with The Ball logo on it. 2
Toki Tori April 19, 2011 Portal 2 features a flag item with the face of Toki Tori on it. 2
The Wonderful End of the World April 19, 2011 Portal 2 features a flag item with the face of the no-named girl from The Wonderful End of the World on it. 2
Left 4 Dead May 30, 2011 The song "Still Alive" from Portal is featured in Left 4 Dead 2, while the custom campaign "Suicide Blitz" features a secret area based on Portal 2. Additionally the "Moustachio" item in Portal 2 is based on Moustachio's mustache from Left 4 Dead 2. 1
The Stanley Parable July 27, 2011 In "The Stanley Parable" you enter the world of Portal. 1
Dungeon Defenders October 19, 2011 The PC version of Dungeon Defenders features The Portal Gun from Portal. 1
Defense Grid December 2011 Defense Grid: You Monster features GLaDOS and levels based on Portal 2, while Portal 2 features a Defense Grid Flag item. 1
The Elder Scrolls February 07, 2012 The Space Core from Portal 2 was included as an official a mod in Skyrim created by Valve, themselves. 1
Minecraft October 17, 2012 Minecraft for Xbox 360 features three downloadable skins based on Portal 2 characters in Skin Pack 3. 2
Poker Night at the Inventory April 24, 2013 Poker Night 2 features GLaDOS from the Portal series as the dealer. 1
Borderlands April 24, 2013 Borderlands 2 features a character skin based on the Portal series. 2
Bit.Trip July 11, 2013 Atlas from Portal 2 is selectable in the Steam version of Runner 2; additionally Portal 2 features a flag item with the image of the main character from the Bit.Trip series on it while Bit.Trip Beat features a Portal 2-themed background. 1
Pacific Rim July 19, 2013 The AI voice in Pacific Rim is based on GLaDOS' voice. 3
Lego Dimensions September 27, 2015 The Portal Universe appears in the game. 1