What if the Congress of Vienna had gone differently?

The great powers redraw Europe and agree to manage it together to prevent another Napoleon.

If it had gone differently: No concert of powers forms; 19th-century Europe lurches from war to war with nothing holding the peace.

The real history on Wikipedia ↗

Later turning points that leaned on the Congress of Vienna. Change it in the game and the ripples reach all of these.

1. 1848The Revolutions of 1848. Without it, The demands for constitutions and nations are never even rehearsed; the old monarchies feel no pressure to bend.
2. 1871German unification. Without it, Central Europe stays a cluster of middle powers; the balance that broke in 1914 never assembles.