Valve releases new, free 'Portal' game that 'isn't Portal 3' - Entertainment
Portal Writer Urges Valve to Make Portal 3
The author of the Portal urges Valve to'start Portal 3' - Game News 24
Portal writer urges Valve to 'start Portal 3' | PC Gamer
Portal 3, the editors appeal: Valve, lets develop it before its too late! - Game News 24
Surprise! Valve will release a new game in the Portal universe - Game News 24
Erik Wolpaw Wants To Make Portal 3 More Than Valve Likely Does
Portal Writer Can't Wait For Valve To Make Portal 3 - Bullfrag
Half-Life and Portal series writer wants Valve to start making Portal 3 | KitGuru
Valve Mentions Portal 3 In Their New Game - Aperture Desk Job : r/Steam
PortalのライターがValveに「Portal 3を始めろ」と迫る - Global Esport News
Portal 3 confirmed : r/valve
Portal 3, an appeal arrives at Valve: "I'm getting old!" - GAMINGDEPUTY
Surprise! Valve is releasing a new game set in the Portal universe | PC Gamer
Portal 3, the writer's appeal: 'Valve, let's develop it before it's too late!' - Aroged
Will Valve Ever Make Portal 3? - YouTube
Portal Reloaded is the closest we're likely to get to Portal 3 | PC Gamer
Portal 3 is coming, release date confirmed by Valve, Half-Life 3 explained -
ポータル』のシナリオライターが『Portal 3』に取り組みたい意欲を示すも見通しは経っていないと心情を発露
The author of the portal addresses Valve: "We have to launch Portal 3" - Esports chimp
Valve Will Reportedly Reveal PORTAL 3 At Tomorrow's Game Awards 2018
The author of the portal addresses Valve: "We have to launch Portal 3" - Esports chimp
Forget Portal 3! Why We Don't Even Need It (But Think Valve is Crazy Anyway) - YouTube
Valve's new game is free, and “not Portal 3” | PCGamesN
Valve's new game is free, and “not Portal 3” | PCGamesN
Portal Writer Wants Valve to Make Portal 3 | Game Live Story
アパチャーサイエンス社のVR実験を撮影した「Portal」の素晴らしいデモ映像が登場、Valveは“Portal 3”の開発を否定 | doope!
ポータル』のシナリオライターが『Portal 3』に取り組みたい意欲を示すも見通しは経っていないと心情を発露
