10 Times The Joker Won
3. Created The Batman Who Laughs - Dark Nights: The Batman Who Laughs
Probably the most terrifying monster of the DC multiverse, The Batman Who Laughs is the perfect combination of Batman and Joker, fused together in a way similar to what almost happened in the last Batman game, Batman: Arkham Knight.
After a massive victory for the Joker inside the previously hidden dark multiverse, Joker killed everyone he could get his hands on and infected the entire city of Gotham with his gas, and carried out every villainous act he could. This included forcing parents to be murdered in front of their kids to create future Batmen for the Clown Prince of Crime to play with later.
When Batman finally struck out against the clown, he finally killed him. Only issue is, the Joker's death would release a toxin that would infect this Batman with a virus that corrupted his mind, turning him into a Joker hybrid with no morals and all of Batman's intelligence.
He also would go on to get a set of rabid orphans and a crazy Damian Wayne, as The Batman Who Laughs turned them into his own personal army of horrifying servant Robins.
This shows what happens in a world where the Joker truly wins against Batman.