Portal is a single-player puzzle-platform video game.

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5
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2answers
377 views

How long is the portal tunnel in Portal?

Just how long is the portal tunnel? By tunnel I mean the intermediary portion between portal ends through which you travel. If it has no thickness and stuff that crosses the portal surface ...
5
votes
1answer
736 views

Does it occur to GLaDOS that the Black Mesa incident was a great achievement?

At the time, Aperture Science and Black Mesa were having a race over portal technology. The Black Mesa incident opened a giant portal connecting Earth and Xen. My theory is that GLaDOS thought that ...
14
votes
4answers
2k views

What would happen if you portalled the TARDIS inside itself?

The TARDIS is one of the few fictional objects that could contain themselves. Firstly, because "it's bigger on the inside" but secondly because the TARDIS has some means of sustaining paradoxes (which ...
10
votes
2answers
961 views

How did Chell end up at Aperture?

I have been looking around the web for an answer but I can't really find anything. How did the character in the video game Portal end up at the lab, trapped by GLaDOS? It is clear from answers to ...
10
votes
3answers
887 views

Why does GLaDOS say “again” in her greeting?

At the very beginning of Portal, GLaDOS greets the player with these words: Hello, and, again, welcome to the Aperture Science Computer-Aided Enrichment Center. Why again?
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votes
7answers
10k views

What is the link between the Portal series and Half-Life series?

I already know they shared the same universe through some mention of the Black Mesa organization - namely in the first Portal's Still Alive end song and the second game's Cave Johnson comment that ...
5
votes
2answers
288 views

What are the clues that could indicate who are Chell's parents?

While searching for a quote to answer an other question, I read this passage in portalgame.wikia article about Chell. Some people think that Caroline and Doug Rattmann are her parents. This ...
9
votes
1answer
276 views

How was Chell picked?

Chell is the tenacious lead character of the Portal Games, but I was wondering why out of all the former employees of Aperture Science was she picked? Was she just the last survivor, or was there a ...
9
votes
3answers
848 views

In-game references to Chell being a clone?

On a recent Giant Bomb Podcast a fellow from Valve said they hadn't heard of the theory that Chell in the Portal games is a clone. This was a common explanation for the in Portal 1 and 2. It ...