In the online game "Travian" the following sentence is used:
"Your barracks is finished. A good step towards world domination.”
Shouldn't it be:
Your barracks are finished
Your barrack is finished
"Barracks" can be either singular or plural.
Plural in the context of "one barrack, two barracks," etc.
But "barracks" could also refer to a COMPLEX of military installations. In that case, "your barracks is finished," means "your military complex is finished," singular.
Yes, it's "computergamese."
No, oddly enough, barracks is a singular as well as a plural. Barrack exists, but only in barrack block, one constituent of a barracks, or metaphorical contexts such as 'a gloomy barrack of a place'. And many computer games allow you to put a Barracks (and, e.g. a Temple) in each of your cities: I would think "Your Barracks are finished" would mean you have one in each city, similar to "Your Temples are finished".