[AndrewNCarr]

It is "id" software, no caps, no periods. It is named for this concept: http://en.wikipedia.org/wiki/Id,_ego_and_super-ego

I used to make similar mistakes years ago, for a long time thinking it was "Eye Dee Software", so I'm posting this to enlighten others, rather than being a grammar commie.

Interestingly, there was a game called iD published in 1986: http://en.wikipedia.org/wiki/ID_%28video_game%29

[1123581321]

No, it is a lowercase shortening of the acronym for Ideas From the Deep, which is what they called themselves before id. Ideas From the Deep becomes IFD becomes ID.

[AndrewNCarr]

http://www.idsoftware.com/business/history

"Taking its name from Freud's primal, instinct-driven face of the human psyche, id Software is, by general acknowledgement, the coolest game shop in the world."

[1123581321]

That is still not the origin.

[DigitalJack]

I've been calling them eye dee software since the first wolfenstein came out. I forget when I learned it rhymed with lid, but I just can't make myself say it that way.

[rm445]

It might help you to know that 'id' is a real word, part of the mind (in Freud's theory) along with the ego and super-ego.

Many apologies if this is patronising, just the way you wrote rhymes with lid rather than just the word id made me unsure if you were aware of it.

[jaxb]

Corrected, thanks.