Try this one...
This Youtube
scenario leads up to an interesting map and interesting possibilities for a world war in the 1890s. Basically, Britain and France intervein in the American Civil War and force the USA to accept the CSA's independence. France gains control of Mexico and Britain takes most of the West coast from San Francisco north. There are also struggles in central Europe and the Eastern Mediterranian. The map is interesting but unstable. it will lead to further Great Power conflict. An agressive expansionist South will compete with France, Germany, Britain, and Spain, to extend its territories southward. The USA will be a rapidly industrializing nation with a large population and hostile to Britain and France, and likely friendly to Germany, Russia, and Spain.
Look at the video, it looks like a fountain of interesting twisted WWIIs (the ACW is WWI in these settings) all set between 1890 and 1910.