Ant Mills, where the ants do keeps following one another in a circle until they die. (insert joke here about reference counting and circular references).
Um, yes, the first results may come from OneBox, which is not from their "Algorithmic" search, but from a separate service that triggers on certain keywords, like "music", "movie"... and "csco". Adding commas just makes it not trigger the OneBox search. It used to be that the OneBox results are more visually different from the rest of the results, but the recent redesigns makes them very much alike.
OneBox is also used to implement features like "10 km in miles". See also http://searchengineland.com/meet-the-google-onebox-plus-box-direct-answers-the-10-pack-26706 I'm not use if they still use the word "OneBox" to describe this feature though, but it is still used in the Google Search Appliances.
Disclaimer. IANAGoogler, reposting this from my reddit reply.
Not as popular, and not D&D, but Akalabeth should be one of the first first person dungeon hack. Predates the Ultimas, which is influential in their own right.
It refuses to install properly on my E71 even after I forced it to install after the not-compatible warning.
The one linked on the European support appeared to be an older version.
0.9 kg vs 1.45 kg. I don't know how many Mars bars that is, but that's over 60% increase in weight.