Wolfenstein 3D is primarily a game about shooting Nazis. Occasionally you'll shoot dogs too, but they're Nazi dogs. Occasionally you'll steal treasure, but it's Nazi treasure. Nazis are a common foe in videogames because they're unambiguously bad, thus triggering no moral quandaries among those who digitally shoot them.
But what if you could, uh, try to talk them out of being Nazis instead? Rather than fight fire with fire, what if we had an Earl Grey and a chinwag? Dialogue 3D —a "hack" of the original Wolfenstein 3D by Ramsey Nasser—offers one fairly convincing answer: You'd probably not have much luck.
The game comes amid much online debate relating to how people who are not Nazis should treat those who are. Some suggest having a discussion, whereas others are happy to punch them from here to next Sunday. I think it's fairly clear which side of that conundrum Nasser inhabits, and he makes a pretty strong case—albeit via a shallow 1990s videogame.
The game is free, only 7mb, and thoroughly unenjoyable to play. But you might as well give it a shot anyway.