View attachment 565121
This is a WiP which is in its early stages, with only North America completed. The basic premise is that the United Kingdom and its native allies decidedly win the War of 1812, leading to the creation of the Confederated Tribes of Indiana as a British client state, as well as the annexation of the Louisiana Purchase as a direct British colony and of the US states of Massachussets, Rhode Island, Connecticut, Vermont, New Hampshire, New York, New Jersey and Pennsylvania by the British (this is admittedly very implausible, but whatever). The New Englander states are given joint responsible government, while both Pennsylvania and New York also gain responsible government for themselves, plus half of New Jersey. The Haudenosaunee League had its independence reaffirmed, albeit as a British client state.
After the Napoleonic Wars concluded, the British returned most of Louisiana to the restored Bourbon monarchy in Paris as a gesture of good will, only keeping lands in the north which London designated native protectorates. By the 1850s it was agreed upon by the UK and France that the Great Sioux Confederay would be a joint protectorate of both nations. Also by that time most of the British colonies in continental North America decided to form a federated dominion, called Laurentia, with only Pennsylvania abstaining. The lands of the Hudson Bay Company and the British possession of Oregon would join by 1860, as would formerly Russian Alaska by 1870.
The rump United States relocated its capital further south to Norfolk and created an autonomy for the so-called "Civilized Tribes" south of the Tennessee River. It is a country suffering from great wealth inequality and racial tensions. French Louisiana meanwhile has been prospering thanks to immigration of French, Italian, and Polish people, as well as due to trade with both the native tribes further north and with the strongest non-dominion nation of the continent, Mexico, which has been experiencing the prospering of its northern possessions in recent years.