How to create a fake language in one day
An interesting blog post from game designer Mikael Säker, in which he explains how he created a fictitious language (for a game) in one day.
Qewo rotawine kuzo osinita tasikisuina. reopise qokotasi duma mo kime qodutioja, ruzeerure titazeso nejo rosojo tasikisuosi nitariso owetati raroqo kimosi diro zesesoaja osi oqatisoso sereneo.
I would argue that this is really more of an encryption (of English) than a language, but it is a quite effective technique for making something appear to have the statistical character of an unfamiliar language, which is all you need for a game.