- Incinerator
- Incinerator Room
- Infinifling
- Infinifling/fi
- Infinifling/pt-br
- Infinifling/ru
- Intelligence Core
- Intelligence Core/fi
- Intelligence Core/fr
- Intelligence Core/ru
- Intelligence Core/zh-hans
- Interview Core
- Inventory
- Items
- Items/cs
- Items/da
- Items/es
- Items/fi
- Items/fr
- Items/pl
- Items/pt-br
- Items/ru
- Items/zh-hant
- January 17, 2023 Patch
- January 17, 2023 Patch/ru
- January 17, 2023 Patch (Portal)
- January 17, 2023 Patch (Portal)/ru
- January 2, 2018 Patch (Bridge Constructor Portal)
- January 2, 2018 Patch (Bridge Constructor Portal)/ru
- January 24, 2017 Patch
- January 24, 2017 Patch/pt-br
- January 24, 2017 Patch/ru
- January 26, 2008 Patch (Portal)
- January 26, 2008 Patch (Portal)/da
- January 26, 2008 Patch (Portal)/fi
- January 26, 2008 Patch (Portal)/fr
- January 26, 2008 Patch (Portal)/pl
- January 26, 2008 Patch (Portal)/pt-br
- January 26, 2008 Patch (Portal)/ru
- January 31, 2022 Patch
- January 31, 2022 Patch (Tools)
- January 5, 2024 Patch
- January 5, 2024 Patch (Portal)
- Jerry
- July 09, 2020 Patch
- July 09, 2020 Patch/es
- July 1, 2011 Patch
- July 1, 2011 Patch/cs
- July 1, 2011 Patch/fi
- July 1, 2011 Patch/fr
- July 1, 2011 Patch/pl
- July 1, 2011 Patch/pt-br
- July 1, 2011 Patch/ru
- July 1, 2016 Patch (The Lab)
- July 1, 2016 Patch (The Lab)/ru
- July 14, 2020 Patch (Tools)
- July 21, 2010 Patch (Portal)
- July 21, 2010 Patch (Portal)/fi
- July 21, 2010 Patch (Portal)/fr
- July 21, 2010 Patch (Portal)/pl
- July 21, 2010 Patch (Portal)/pt-br
- July 21, 2010 Patch (Portal)/ru
- July 21, 2022 Patch
- July 21, 2022 Patch/ru
- July 27, 2017 Patch
- July 27, 2017 Patch/ru
- July 28, 2017 Patch
- July 28, 2017 Patch/ru
- July 5, 2016 Patch (The Lab)
- July 5, 2016 Patch (The Lab)/ru
- July 7, 2011 Patch
- July 7, 2011 Patch/cs
- July 7, 2011 Patch/fi
- July 7, 2011 Patch/fr
- July 7, 2011 Patch/pl
- July 7, 2011 Patch/pt-br
- July 7, 2011 Patch/ru
- July 9, 2020 Patch
- July 9, 2020 Patch/es
- June 02, 2021 Patch
- June 02, 2021 Patch/es
- June 04, 2012 Patch
- June 04, 2012 Patch/fi
- June 04, 2012 Patch/ru
- June 05, 2018 Patch
- June 05, 2018 Patch/ru
- June 1, 2011 Patch
- June 10, 2008 Patch (Portal)
- June 10, 2008 Patch (Portal)/da
- June 10, 2008 Patch (Portal)/fi
- June 10, 2008 Patch (Portal)/fr
- June 10, 2008 Patch (Portal)/pl
- June 10, 2008 Patch (Portal)/pt-br
- June 10, 2008 Patch (Portal)/ru
- June 15, 2010 Patch (Portal)
- June 15, 2010 Patch (Portal)/fi
- June 15, 2010 Patch (Portal)/fr
- June 15, 2010 Patch (Portal)/pl
- June 15, 2010 Patch (Portal)/pt-br
- June 15, 2010 Patch (Portal)/ru
- June 17, 2014 Patch
- June 17, 2014 Patch/es
- June 17, 2014 Patch/pt-br
- June 17, 2014 Patch/ru
- June 2, 2021 Patch
- June 2, 2021 Patch/es
- June 20, 2018 Patch
- June 20, 2018 Patch/ru
- June 23, 2009 Patch (Portal)
- June 23, 2009 Patch (Portal)/fi
- June 23, 2009 Patch (Portal)/fr
- June 23, 2009 Patch (Portal)/pl
- June 23, 2009 Patch (Portal)/pt-br
- June 23, 2009 Patch (Portal)/ru
- June 24, 2013 Patch (Portal)
- June 24, 2013 Patch (Portal)/es
- June 24, 2013 Patch (Portal)/pl
- June 24, 2013 Patch (Portal)/pt-br
- June 24, 2013 Patch (Portal)/ru
- June 24, 2024 Patch
- June 3, 2010 Patch (Portal)
- June 3, 2010 Patch (Portal)/fi
- June 3, 2010 Patch (Portal)/fr
- June 3, 2010 Patch (Portal)/pl
- June 3, 2010 Patch (Portal)/pt-br
- June 3, 2010 Patch (Portal)/ru
- June 3, 2024 Patch
- June 30, 2017 Patch
- June 30, 2017 Patch/ru
- June 4, 2012 Patch
- June 4, 2012 Patch/fi
- June 4, 2012 Patch/ru
- June 5, 2018 Patch
- June 5, 2018 Patch/ru
- June 6, 2013 Patch
- June 6, 2013 Patch/es
- June 6, 2013 Patch/fi
- June 6, 2013 Patch/pt-br
- June 6, 2013 Patch/ru
- June 6, 2016 Patch (The Lab)
- June 6, 2016 Patch (The Lab)/pt-br
- June 6, 2016 Patch (The Lab)/ru
- June 7, 2016 Patch (The Lab)
- June 7, 2016 Patch (The Lab)/pt-br
- June 7, 2016 Patch (The Lab)/ru
- KILLING FLOOR FLAG
- Killing Floor Flag
- Killing Floor Flag/fi
- Killing Floor Flag/pt-br
- Killing Floor Flag/ru
- Korona Księcia Tavisha
- Kostka
- Kostka Towarzysząca
- Kostki
- Kuchen
- LEGO Dimensions
- LEGO Dimensions/fr
- LEGO Dimensions/pt-br
- Lab Rat
- Lab Rat/fi
- Lab Rat/fr
- Lab Rat/pt-br
- Lab rat
- Laser
- Laser Field
- Laser Field/fi
- Laser Field/pl
- Laser Field/pt-br
- Laser Field/ru
- Laser Turret
- Launch TV Ad (Video)
- Launch TV Ad (video)
- Launch TV Ad (video)/fi
- Launch TV Ad (video)/ru
- Lazer Turret
- Learn With Portals
- Learn With Portals/fi
- Learn With Portals/pt-br
- Learn With Portals/ru
- Left 4 Dead
- Left 4 Dead/fi
- Left 4 Dead/pt-br
- Left 4 Dead/ru
- Left 4 Dead 2
- Left 4 Dead 2/pt-br
- Lego Dimensions
- Lemons
- Lie
- Lift
- Lift/pt-br
- Light Bridge
- Light bridge
- List of Fact Sphere facts
- List of Fact Sphere facts/es
- List of Fact Sphere facts/fi
- List of Fact Sphere facts/ru
- List of Portal 2 chambers
- List of Portal 2 chambers/fi
- List of Portal 2 chambers/fr
- List of Portal 2 chambers/ko
- List of Portal 2 chambers/pl
- List of Portal 2 chambers/pt-br
- List of Portal 2 chambers/ru
- List of Portal Stories: Mel chambers
- List of Portal chambers
- List of Portal chambers/fi
- List of Portal chambers/fr
- List of Portal chambers/pl
- List of Portal chambers/pt-br
- List of Portal chambers/ru
- List of Portal chambers/zh-hans
- List of Portal chambers/zh-hant
- List of default keys
- List of default keys/de
- List of default keys/fi
- List of default keys/fr
- List of default keys/pt-br
- List of default keys/ru
- List of default keys/zh-hans
- List of references
- List of references/fi
- List of useful console commands
- List of useful console commands/de
- List of useful console commands/fi
- Lista komór testowych w Portalu
- Lista pomieszczeń testowych w Portalu 2
- Logic Core
- Logros
- Long Fall Boots
- Long Fall Boots/es
- Long Fall Boots/fi
- MANN CO. CAP
- MASTER'S YELLOW BELT
- METALLIC MOUSTACHE
- MILITARY SKINS
- MOON FLAG
- MOON SKINS
- MOUSTACHIO
- Main Page
- Main Page/ar
- Main Page/cs
- Main Page/da
- Main Page/de
- Main Page/es
- Main Page/fi
- Main Page/fr
- Main Page/hu
- Main Page/ja
- Main Page/ko
- Main Page/nl
- Main Page/no
- Main Page/pl
- Main Page/pt-br
- Main Page/ro
- Main Page/ru
- Main Page/sv
- Main Page/zh-hans
- Main Page/zh-hant
- Main menu
- Main menu/fi
- Main menu/fr
- Main menu/pt-br
- Main menu/ru
- Mann Co. Cap
- Mann Co. Cap/es
- Mann Co. Cap/fi
- Mann Co. Cap/pl
- Mann Co. Cap/pt-br
- Mann Co. Cap/ru
- Mann co cap
- Maps
- March 01, 2021 Patch
- March 02, 2021 Patch
- March 02, 2021 Patch (Tools)
- March 05, 2018 Patch
- March 05, 2018 Patch/ru
- March 1, 2010 Patch (Portal)
- March 1, 2010 Patch (Portal)/fi
- March 1, 2010 Patch (Portal)/fr
- March 1, 2010 Patch (Portal)/pl
- March 1, 2010 Patch (Portal)/pt-br
- March 1, 2010 Patch (Portal)/ru
- March 1, 2021 Patch
- March 14, 2023 Patch
- March 14, 2023 Patch/ar
- March 14, 2023 Patch/ru
- March 2, 2011 Patch (Portal)
- March 2, 2011 Patch (Portal)/cs
- March 2, 2011 Patch (Portal)/es
- March 2, 2011 Patch (Portal)/fi
- March 2, 2011 Patch (Portal)/fr
- March 2, 2011 Patch (Portal)/ko
- March 2, 2011 Patch (Portal)/pl
- March 2, 2011 Patch (Portal)/pt-br
- March 2, 2011 Patch (Portal)/ru
- March 2, 2021 Patch
- March 2, 2021 Patch (Tools)
- March 21, 2013 Patch
- March 21, 2013 Patch/fi
- March 21, 2013 Patch/pt-br
- March 21, 2013 Patch/ru
- March 25, 2023 Patch
- March 28, 2018 Patch (Bridge Constructor Portal)
- March 28, 2018 Patch (Bridge Constructor Portal)/ru
- March 3, 2010 Patch (Portal)
- March 3, 2010 Patch (Portal)/es
- March 3, 2010 Patch (Portal)/fi
- March 3, 2010 Patch (Portal)/fr
- March 3, 2010 Patch (Portal)/pl
- March 3, 2010 Patch (Portal)/pt-br
- March 3, 2010 Patch (Portal)/ru
- March 5, 2018 Patch
- March 5, 2018 Patch/ru
- Mashy Spike Plate
- Master's Yellow Belt
- Master's Yellow Belt/es
- Master's Yellow Belt/fi
- Master's Yellow Belt/pl
- Master's Yellow Belt/pt-br
- Master's Yellow Belt/ru
- Master's Yellow Belt/zh-hant
- Masters yellow belt
- Material Emancipation Grid
- Material Emancipation Grill
- Material Emancipation Grill/cs
- Material Emancipation Grill/es
- Material Emancipation Grill/fi
- Material Emancipation Grill/fr
- Material Emancipation Grill/ko
- Material Emancipation Grill/pl
- Material Emancipation Grill/pt-br
- Material Emancipation Grill/ru
- Material Emancipation Grill/zh-hant
- Material Emancipation Grills
- May 01, 2020 Patch
- May 01, 2020 Patch/es
- May 01, 2020 Patch/ru
- May 01, 2020 Patch (Tools)
- May 01, 2020 Patch (Tools)/ru
- May 08, 2012 Patch
- May 08, 2012 Patch/fi
- May 08, 2012 Patch/ru
- May 08, 2012 Patch (Tools)
- May 08, 2012 Patch (Tools)/fi
- May 08, 2012 Patch (Tools)/pl