The game doesn't focus around it but I had a lot of fun killing absolutely everyone without a collar on slaver island in Pillars of Eternity 2: deadfire. Stellaris and the other Paradox grand strategy games deserve a shout. You can do fun lefty wars of liberation against nations who's politics you don't like and enact policies that make your people's lives not suck.
Not exactly what you're looking for but Wolfenstein is all about killing Nazis
The game doesn't focus around it but I had a lot of fun killing absolutely everyone without a collar on slaver island in Pillars of Eternity 2: deadfire. Stellaris and the other Paradox grand strategy games deserve a shout. You can do fun lefty wars of liberation against nations who's politics you don't like and enact policies that make your people's lives not suck.
Not exactly what you're looking for but Wolfenstein is all about killing Nazis