The Eighth Sea (2010)

User Summary: Collaborative storytelling rpg of time-traveling pirates.

From the introduction:
Some say that time be like a rope. They say it be a single line that be goin' from the beginnin' to the end. In some ways they might be right, but only if ye be lookin' at a rope closely, for time be a mass of lines twisted round one another in complicated ways.

Others say time be like a stream or river, flowing from one point to another, and this be true as well in a way. That's b'cause time be flowin' with currents and eddies, and it can change on a whim like the driftin' of sand banks. Only an experienced navigator can get a crew from one point to another without gettin' into a whole mess o' trouble.

Of course, if ye be askin' me, and ye wouldn' be writin' this down for others to read if ye' didn' want me opinion...Time be a vast ocean.

It be a swirlin' mass of flows and currents that can take ye anywhere ye imagination could desire.

She be a harsh mistress, but one who treats her well is in for the time of their life!

Forget ye landlubbin' and chronostatic ways...

Welcome to a world of high seas, quantum waves and differential currents.

Welcome to the Eighth Sea.