Arnold
Another Batman

8
Somewhere in the infinite possibilities of the Multiverse is a place where Arnold Schwarzenegger has taken up the mantle of Batman. In this time line, Arnold was born into a rich family, his parents Gustav and Aurelia having ownership of a large company.
That company moves its operations to Gotham and they move Arnold there as a child. Of course, things play out very similarly, the events with Joe Chill still took place and Arnold was orphaned.
Arnold was raised by his butler Alfred and everything else follows a similar path to what happened with Bruce, though the differences are visible. For one thing, he opts for a Black and Gold aesthetic, his drive for competition and bettering himself playing a large part in that.
You’ve some stumbled into a closet at Schwarzenegger Manor and ended up in the Batcave.